Portal (#6391)

# Description of Changes

## What & why

This PR introduces the **Stirling developer portal** — a new
control-plane frontend that sits alongside the existing PDF editor —
plus the shared design system and workspace structure needed to host
both apps in one frontend.

The portal is the parent product surface: where users connect sources,
compose pipelines, wire agents, and manage usage / billing /
infrastructure, with the PDF editor as one capability inside it. This PR
lays the **foundation** — workspace reshape, design system, app shell,
navigation, and a mock-driven home — rather than wiring real backends
(those surfaces are placeholders for follow-up phases).

## What's in this PR

**1. Frontend repo reshape (`frontend/src/` → `frontend/editor/`)**
The existing editor app moved under `frontend/editor/`, so `editor`,
`portal`, and `shared` are siblings in one workspace. All references
were updated accordingly: `LICENSE`, `.dockerignore`, `.gitignore`,
build/sign shell scripts, the GH language-check script, the Taskfile,
and Docker config. **No editor source logic changed — path references
only.**

**2. New shared design system (`frontend/shared/`)**
- **Design tokens** in `tokens.css` as the single runtime source of
truth (light/dark, category accents, gradients). `tokens.ts` now holds
only the `Tier` type — the old JS palette mirror was removed (nothing
consumed it and it had drifted).
- ~30 framework-light **components** (Card, Button, Input, Select, Tabs,
Modal, Drawer, Toast, MetricCard, StatusBadge, Skeleton, EmptyState, …)
with Storybook stories.
- **Typed data catalogues**: `endpoints.ts` (10 verticals / 64
endpoints) and `ops.ts`.

**3. New developer portal app (`frontend/portal/`)**
- App shell: `Header`, `Sidebar`, `AssistantPanel`, search modal,
notifications, tier switcher, theme toggle, MSW toggle.
- **Tier-aware** home (free / pay-as-you-go / enterprise): KPI strip,
30-day usage chart, onboarding checklist, quick actions, recent
activity, region health, product grid, and a curated **"Popular use
cases"** teaser.
- **Documents** view hosting the full, tab-filterable endpoint
catalogue.
- Placeholder views for Sources / Pipelines / Agents / Editor /
Infrastructure / Usage & Billing / Developer Docs / Settings (follow-up
phases).
- **MSW-mocked** API layer: `api/*` issues real `fetch`, intercepted by
mocks in dev/Storybook; pointing at a real backend is just a matter of
not registering MSW. `react-router` URLs; Tier / View / UI contexts.

**4. Tooling & guardrails**
- ESLint extended to `portal` + `shared`, with **layering-boundary
rules**: `shared/` may depend only on third-party packages and itself
(no `@app` / `@portal` / `@core` / `@proprietary` / Tauri), so it stays
cleanly extractable into a standalone package later.
- `dpdm` circular-dependency check now walks editor + portal + shared
(the old glob matched only 2 files).
- New **devDependencies only** — Storybook (+ a11y/docs/themes addons),
MSW. No runtime dependencies added.
- New tasks: `frontend:dev:portal`, `frontend:build:portal`.

## Testing done locally

- `tsc` for both `portal` and `shared` projects — clean
- `eslint --max-warnings=0` across the whole frontend — clean
- `dpdm` circular-dependency check — no cycles
- Editor builds clean: `vite build editor --mode core` (✓ built, only
the pre-existing >500 kB chunk-size advisory)
- Editor runs in dev (core mode) with **zero console errors**; portal
runs in dev across all three tiers

## Notes for reviewers

- The change is overwhelmingly **additive**: `shared/` and `portal/` are
brand-new; the existing editor is path-reference changes only.
- The portal is intentionally **mock-driven** at this stage — real
backends and the remaining views land in follow-up phases.

---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [x] I have performed a self-review of my own code
- [x] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### Translations (if applicable)

- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have run `task check` to verify linters, typechecks, and tests
pass
- [x] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#7-testing)
for more details.

---------

Co-authored-by: Claude Opus 4.8 (1M context) <[email protected]>

.dockerignore

@@ -26,8 +26,9 @@ version_builds/
 node_modules/
 **/node_modules/
 frontend/node_modules/
-frontend/dist/
+frontend/editor/dist/
-frontend/playwright-report/
+frontend/dist-portal/
+frontend/editor/playwright-report/
 .npm/
 .yarn/
 

.gitignore

@@ -212,7 +212,7 @@ out/
 *.asc
 
 # Allow test fixture certificates (synthetic, no real credentials)
-!frontend/src/core/tests/test-fixtures/certs/**
+!frontend/editor/src/core/tests/test-fixtures/certs/**
 
 # SSH Keys
 *.pub
@@ -254,7 +254,7 @@ node_modules/
 *compact*.json
 test_batch.json
 *.backup.*.json
-frontend/public/locales/*/translation.backup*.json
+frontend/editor/public/locales/*/translation.backup*.json
 
 # Development/build artifacts
 .gradle-cache/

.taskfiles/frontend.yml

@@ -112,6 +112,12 @@ tasks:
       - task: dev:_run
         vars: { MODE: prototypes, PORT: '{{.PORT}}', BACKEND_URL: '{{.BACKEND_URL}}', OPEN: '{{.OPEN}}' }
 
+  dev:portal:
+    desc: "Start developer portal dev server"
+    deps: [install]
+    cmds:
+      - npx vite portal --port {{.PORT | default "5173"}}{{if .OPEN}} --open{{end}}
+
   # ============================================================
   # Build
   # ============================================================
@@ -156,6 +162,24 @@ tasks:
     cmds:
       - npx vite build editor --mode prototypes
 
+  build:portal:
+    desc: "Build developer portal"
+    deps: [install]
+    cmds:
+      - npx vite build portal
+
+  storybook:
+    desc: "Start Storybook dev server"
+    deps: [install]
+    cmds:
+      - npx storybook dev -p 6006 {{.CLI_ARGS}}
+
+  storybook:build:
+    desc: "Build static Storybook"
+    deps: [install]
+    cmds:
+      - npx storybook build {{.CLI_ARGS}}
+
   # ============================================================
   # Code quality
   # ============================================================
@@ -165,7 +189,10 @@ tasks:
     deps: [install]
     cmds:
       - npx eslint --max-warnings=0
-      - npx dpdm editor/src --circular --no-warning --no-tree --exit-code circular:1
+      # Globs (not a bare dir) so dpdm walks the whole tree — `editor/src`
+      # alone matched only 2 files. dpdm expands the braces itself, so this is
+      # shell-agnostic. Covers editor, portal, and the shared design system.
+      - 'npx dpdm "editor/src/**/*.{ts,tsx}" "portal/src/**/*.{ts,tsx}" "shared/**/*.{ts,tsx}" --circular --no-warning --no-tree --exit-code circular:1'
 
   lint:fix:
     desc: "Auto-fix lint issues"
@@ -236,6 +263,18 @@ tasks:
     cmds:
       - npx tsc --noEmit --project editor/src/prototypes/tsconfig.json
 
+  typecheck:portal:
+    desc: "Typecheck developer portal build variant"
+    deps: [install]
+    cmds:
+      - npx tsc --noEmit --project portal/tsconfig.json
+
+  typecheck:shared:
+    desc: "Typecheck the shared design system"
+    deps: [install]
+    cmds:
+      - npx tsc --noEmit --project shared/tsconfig.json
+
   typecheck:all:
     desc: "Typecheck all build variants"
     cmds:
@@ -245,6 +284,8 @@ tasks:
       - task: typecheck:desktop
       - task: typecheck:scripts
       - task: typecheck:prototypes
+      - task: typecheck:portal
+      - task: typecheck:shared
 
   # ============================================================
   # Quality Gate
@@ -265,7 +306,9 @@ tasks:
       - task: lint
       - task: format:check
       - task: build
+      - task: build:portal
       - task: test
+      - task: storybook:build
 
   # ============================================================
   # Test

LICENSE

@@ -10,14 +10,16 @@ if that directory exists, is licensed under the license defined in "app/propriet
 if that directory exists, is licensed under the license defined in "app/saas/LICENSE".
 * All content that resides under the "engine/" directory of this repository,
 if that directory exists, is licensed under the license defined in "engine/LICENSE".
-* All content that resides under the "frontend/src/proprietary/" directory of this repository,
+* All content that resides under the "frontend/editor/src/proprietary/" directory of this repository,
-if that directory exists, is licensed under the license defined in "frontend/src/proprietary/LICENSE".
+if that directory exists, is licensed under the license defined in "frontend/editor/src/proprietary/LICENSE".
-* All content that resides under the "frontend/src/desktop/" directory of this repository,
+* All content that resides under the "frontend/editor/src/desktop/" directory of this repository,
-if that directory exists, is licensed under the license defined in "frontend/src/desktop/LICENSE".
+if that directory exists, is licensed under the license defined in "frontend/editor/src/desktop/LICENSE".
-* All content that resides under the "frontend/src/saas/" directory of this repository,
+* All content that resides under the "frontend/editor/src/saas/" directory of this repository,
-if that directory exists, is licensed under the license defined in "frontend/src/saas/LICENSE".
+if that directory exists, is licensed under the license defined in "frontend/editor/src/saas/LICENSE".
-* All content that resides under the "frontend/src/prototypes/" directory of this repository,
+* All content that resides under the "frontend/editor/src/prototypes/" directory of this repository,
-if that directory exists, is licensed under the license defined in "frontend/src/prototypes/LICENSE".
+if that directory exists, is licensed under the license defined in "frontend/editor/src/prototypes/LICENSE".
+* All content that resides under the "frontend/portal/" directory of this repository,
+if that directory exists, is licensed under the license defined in "frontend/portal/LICENSE".
 * Content outside of the above mentioned directories or restrictions above is
 available under the MIT License as defined below.
 

docker/frontend/Dockerfile

@@ -13,7 +13,7 @@ RUN npm ci
 COPY frontend .
 
 # Build the application (vite root is editor/, output lands in editor/dist/)
-RUN npx vite --root editor build
+RUN npx vite build editor
 
 # Production stage
 FROM nginx:alpine@sha256:b0f7830b6bfaa1258f45d94c240ab668ced1b3651c8a222aefe6683447c7bf55

frontend/.gitignore

@@ -11,6 +11,8 @@
 # production
 /build
 /dist
+/dist-portal
+/storybook-static
 
 /editor/build
 /editor/dist

frontend/.prettierignore

@@ -8,6 +8,8 @@ editor/src-tauri/**/target/
 editor/src-tauri/gen/
 node_modules/
 editor/public/vendor/
+# Auto-generated by MSW (`msw init`); regenerated verbatim, not hand-formatted.
+portal/public/mockServiceWorker.js
 editor/public/pdfjs*/
 editor/public/js/thirdParty/
 editor/public/css/cookieconsent.css

frontend/.storybook/main.ts

@@ -0,0 +1,42 @@
+import { resolve } from "node:path";
+import type { StorybookConfig } from "@storybook/react-vite";
+
+/**
+ * Storybook 9 ships essentials, interactions, and docs as built-ins, so the
+ * addon list is just the extras we want: theme switching + a11y auditing.
+ *
+ * Story files live next to their components in shared/ and portal/src/.
+ * MDX docs pages live in portal/src/docs/.
+ */
+const config: StorybookConfig = {
+  stories: [
+    "../portal/src/**/*.mdx",
+    "../portal/src/**/*.stories.@(ts|tsx)",
+    "../shared/**/*.mdx",
+    "../shared/**/*.stories.@(ts|tsx)",
+  ],
+  addons: ["@storybook/addon-themes", "@storybook/addon-a11y"],
+  framework: {
+    name: "@storybook/react-vite",
+    options: {},
+  },
+  typescript: {
+    reactDocgen: "react-docgen-typescript",
+  },
+  // Serve the MSW worker file from portal/public so Storybook can intercept
+  // network calls the same way the dev portal does.
+  staticDirs: ["../portal/public"],
+  viteFinal: async (config) => {
+    // Wire @portal/* and @shared/* aliases directly on the Storybook bundler so
+    // story imports resolve without needing the portal's vite config.
+    config.resolve = config.resolve ?? {};
+    config.resolve.alias = {
+      ...(config.resolve.alias ?? {}),
+      "@portal": resolve(__dirname, "../portal/src"),
+      "@shared": resolve(__dirname, "../shared"),
+    };
+    return config;
+  },
+};
+
+export default config;

frontend/.storybook/preview.tsx

@@ -0,0 +1,142 @@
+// Storybook compiles .storybook/* with the classic JSX runtime, so the JSX in
+// the decorators below transpiles to React.createElement and needs React in
+// scope. (The app + story files use the automatic runtime via the portal vite
+// config; this import is specifically for the preview config file.)
+import React, { useEffect } from "react";
+import type { Decorator, Preview } from "@storybook/react-vite";
+import { initialize, mswLoader } from "msw-storybook-addon";
+import { MemoryRouter } from "react-router-dom";
+import { withThemeByDataAttribute } from "@storybook/addon-themes";
+import { MantineProvider } from "@mantine/core";
+
+// Reference React so the import isn't dropped as unused by the bundler — the
+// classic runtime needs it present even though it's not named in the JSX.
+void React;
+
+import { TierProvider, type Tier } from "@portal/contexts/TierContext";
+import { ThemeProvider } from "@portal/contexts/ThemeContext";
+import { UIProvider } from "@portal/contexts/UIContext";
+import { mantineTheme } from "@portal/theme/mantineTheme";
+import { handlers } from "@portal/mocks/handlers";
+
+import "@mantine/core/styles.css";
+import "@shared/tokens/tokens.css";
+import "@shared/tokens/base.css";
+
+// Start MSW once. Storybook runs in a browser so this uses the service worker.
+initialize({ onUnhandledRequest: "bypass" }, handlers);
+
+/**
+ * Bridge between Storybook's `tier` global toolbar and the actual TierProvider.
+ * Without this the toolbar would just change a label; with it, every story
+ * that calls useTier() reflects the active toolbar value.
+ */
+function TierBridge({
+  tier,
+  children,
+}: {
+  tier: Tier;
+  children: React.ReactNode;
+}) {
+  return <TierProvider initialTier={tier}>{children}</TierProvider>;
+}
+
+/** Forces the TierProvider to re-mount whenever the toolbar tier changes. */
+function TierKey({
+  tier,
+  children,
+}: {
+  tier: Tier;
+  children: React.ReactNode;
+}) {
+  return (
+    <TierBridge key={tier} tier={tier}>
+      {children}
+    </TierBridge>
+  );
+}
+
+/** Keeps useTheme() and the data-theme attribute in sync. */
+function ThemeWatcher() {
+  useEffect(() => {
+    // The addon-themes decorator already sets data-theme on <html>.
+    // We just read it on mount so ThemeProvider picks it up.
+  }, []);
+  return null;
+}
+
+const withProviders: Decorator = (Story, context) => {
+  const tier = (context.globals.tier as Tier) ?? "pro";
+  // withThemeByDataAttribute exposes the toolbar theme as the `theme` global.
+  // Bind Mantine's color scheme to it so Mantine chrome (inputs, focus rings,
+  // default surfaces) follows the dark toggle alongside the SUI CSS variables.
+  // The global initialises to "" (before any toolbar interaction), so treat
+  // anything that isn't "dark" as light — matching the addon's own
+  // `selected || defaultTheme` fallback where defaultTheme is light.
+  const colorScheme = context.globals.theme === "dark" ? "dark" : "light";
+  return (
+    <MemoryRouter initialEntries={["/"]}>
+      <ThemeProvider>
+        <MantineProvider theme={mantineTheme} forceColorScheme={colorScheme}>
+          <TierKey tier={tier}>
+            <UIProvider>
+              <ThemeWatcher />
+              <Story />
+            </UIProvider>
+          </TierKey>
+        </MantineProvider>
+      </ThemeProvider>
+    </MemoryRouter>
+  );
+};
+
+const preview: Preview = {
+  loaders: [mswLoader],
+  parameters: {
+    layout: "padded",
+    controls: {
+      matchers: { color: /(background|color)$/i, date: /Date$/i },
+    },
+    backgrounds: {
+      default: "app",
+      values: [
+        { name: "app", value: "var(--color-bg)" },
+        { name: "surface", value: "var(--color-surface)" },
+      ],
+    },
+    a11y: {
+      // Run axe automatically against the story root; violations show in the
+      // Accessibility panel. `context` replaced `element` in addon-a11y 9.x.
+      context: "#storybook-root",
+      config: {},
+      options: {},
+      test: "todo",
+    },
+  },
+  globalTypes: {
+    tier: {
+      name: "Tier",
+      description: "Subscription tier — drives useTier() everywhere",
+      defaultValue: "pro",
+      toolbar: {
+        icon: "star",
+        items: [
+          { value: "free", title: "Free" },
+          { value: "pro", title: "Pay-as-you-go" },
+          { value: "enterprise", title: "Enterprise" },
+        ],
+        dynamicTitle: true,
+      },
+    },
+  },
+  decorators: [
+    withProviders,
+    withThemeByDataAttribute({
+      themes: { light: "light", dark: "dark" },
+      defaultTheme: "light",
+      attributeName: "data-theme",
+    }),
+  ],
+};
+
+export default preview;

frontend/editor/scripts/tsconfig.json

@@ -5,6 +5,5 @@
     "moduleResolution": "node16",
     "noEmit": true
   },
-  "include": ["./**/*.ts", "./**/*.mts"],
+  "include": ["./**/*.ts", "./**/*.mts"]
-  "exclude": []
 }

frontend/editor/src/core/tsconfig.json

@@ -3,7 +3,8 @@
   "compilerOptions": {
     "baseUrl": "../../",
     "paths": {
-      "@app/*": ["src/core/*"]
+      "@app/*": ["src/core/*"],
+      "@shared/*": ["../shared/*"]
     }
   },
   "include": ["../global.d.ts", "../*.js", "../*.ts", "../*.tsx", "."]

frontend/editor/src/desktop/tsconfig.json

@@ -5,7 +5,8 @@
     "paths": {
       "@app/*": ["src/desktop/*", "src/proprietary/*", "src/core/*"],
       "@proprietary/*": ["src/proprietary/*"],
-      "@core/*": ["src/core/*"]
+      "@core/*": ["src/core/*"],
+      "@shared/*": ["../shared/*"]
     }
   },
   "include": [

frontend/editor/src/proprietary/tsconfig.json

@@ -4,7 +4,8 @@
     "baseUrl": "../../",
     "paths": {
       "@app/*": ["src/proprietary/*", "src/core/*"],
-      "@core/*": ["src/core/*"]
+      "@core/*": ["src/core/*"],
+      "@shared/*": ["../shared/*"]
     }
   },
   "include": [

frontend/editor/src/prototypes/tsconfig.json

@@ -5,7 +5,8 @@
     "paths": {
       "@app/*": ["src/prototypes/*", "src/proprietary/*", "src/core/*"],
       "@proprietary/*": ["src/proprietary/*"],
-      "@core/*": ["src/core/*"]
+      "@core/*": ["src/core/*"],
+      "@shared/*": ["../shared/*"]
     }
   },
   "include": [

frontend/editor/src/saas/tsconfig.json

@@ -5,7 +5,8 @@
     "paths": {
       "@app/*": ["src/saas/*", "src/proprietary/*", "src/core/*"],
       "@proprietary/*": ["src/proprietary/*"],
-      "@core/*": ["src/core/*"]
+      "@core/*": ["src/core/*"],
+      "@shared/*": ["../shared/*"]
     }
   },
   "include": ["../global.d.ts", "../*.js", "../*.ts", "../*.tsx", "."]

frontend/editor/tsconfig.core.vite.json

@@ -2,8 +2,9 @@
   "extends": "./tsconfig.json",
   "compilerOptions": {
     "paths": {
-      "@app/*": ["src/core/*"]
+      "@app/*": ["src/core/*"],
+      "@shared/*": ["../shared/*"]
     }
   },
-  "exclude": ["src/proprietary", "src/desktop", "node_modules"]
+  "exclude": ["src/proprietary", "src/desktop"]
 }

frontend/editor/tsconfig.desktop.vite.json

@@ -4,14 +4,14 @@
     "paths": {
       "@app/*": ["src/desktop/*", "src/proprietary/*", "src/core/*"],
       "@proprietary/*": ["src/proprietary/*"],
-      "@core/*": ["src/core/*"]
+      "@core/*": ["src/core/*"],
+      "@shared/*": ["../shared/*"]
     }
   },
   "exclude": [
     "src/core/**/*.test.ts*",
     "src/core/**/*.spec.ts*",
     "src/proprietary/**/*.test.ts*",
-    "src/proprietary/**/*.spec.ts*",
+    "src/proprietary/**/*.spec.ts*"
-    "node_modules"
   ]
 }

frontend/editor/tsconfig.json

@@ -34,7 +34,8 @@
       /* Specify a set of entries that re-map imports to additional lookup locations. */
       "@app/*": ["src/desktop/*", "src/proprietary/*", "src/core/*"],
       "@proprietary/*": ["src/proprietary/*"],
-      "@core/*": ["src/core/*"]
+      "@core/*": ["src/core/*"],
+      "@shared/*": ["../shared/*"]
     },
     // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
     // "typeRoots": [],                                  /* Specify multiple folders that act like './node_modules/@types'. */

frontend/editor/tsconfig.proprietary.vite.json

@@ -4,13 +4,9 @@
     "paths": {
       "@app/*": ["src/proprietary/*", "src/core/*"],
       "@proprietary/*": ["src/proprietary/*"],
-      "@core/*": ["src/core/*"]
+      "@core/*": ["src/core/*"],
+      "@shared/*": ["../shared/*"]
     }
   },
-  "exclude": [
+  "exclude": ["src/core/**/*.test.ts*", "src/core/**/*.spec.ts*", "src/desktop"]
-    "src/core/**/*.test.ts*",
-    "src/core/**/*.spec.ts*",
-    "src/desktop",
-    "node_modules"
-  ]
 }

frontend/editor/tsconfig.prototypes.vite.json

@@ -4,7 +4,8 @@
     "paths": {
       "@app/*": ["src/prototypes/*", "src/proprietary/*", "src/core/*"],
       "@proprietary/*": ["src/proprietary/*"],
-      "@core/*": ["src/core/*"]
+      "@core/*": ["src/core/*"],
+      "@shared/*": ["../shared/*"]
     }
   },
   "exclude": [
@@ -13,7 +14,6 @@
     "src/proprietary/**/*.test.ts*",
     "src/proprietary/**/*.spec.ts*",
     "src/desktop",
-    "src/saas",
+    "src/saas"
-    "node_modules"
   ]
 }

frontend/editor/tsconfig.saas.vite.json

@@ -4,7 +4,8 @@
     "paths": {
       "@app/*": ["src/saas/*", "src/proprietary/*", "src/core/*"],
       "@proprietary/*": ["src/proprietary/*"],
-      "@core/*": ["src/core/*"]
+      "@core/*": ["src/core/*"],
+      "@shared/*": ["../shared/*"]
     }
   },
   "exclude": [
@@ -12,7 +13,6 @@
     "src/core/**/*.spec.ts*",
     "src/proprietary/**/*.test.ts*",
     "src/proprietary/**/*.spec.ts*",
-    "src/desktop",
+    "src/desktop"
-    "node_modules"
   ]
 }

frontend/eslint.config.mjs

@@ -5,19 +5,30 @@ import globals from "globals";
 import { defineConfig } from "eslint/config";
 import tseslint from "typescript-eslint";
 
-const srcGlobs = ["editor/src/**/*.{js,mjs,jsx,ts,tsx}"];
+const srcGlobs = [
+  "editor/src/**/*.{js,mjs,jsx,ts,tsx}",
+  "portal/src/**/*.{js,mjs,jsx,ts,tsx}",
+  "portal/main.tsx",
+  "shared/**/*.{js,mjs,jsx,ts,tsx}",
+];
 const nodeGlobs = [
   "scripts/**/*.{js,ts,mjs,mts}",
   "editor/scripts/**/*.{js,ts,mjs,mts}",
   "editor/*.config.{js,ts,mjs}",
+  "portal/*.config.{js,ts,mjs}",
   "*.config.{js,ts,mjs}",
+  ".storybook/*.{js,ts,mjs,mts,tsx}",
 ];
 
 const baseRestrictedImportPatterns = [
-  { regex: "^\\.", message: "Use @app/* imports instead of relative imports." },
+  {
+    regex: "^\\.",
+    message:
+      "Use a workspace alias (@app/* for editor, @portal/* for portal, @shared/*) instead of relative imports.",
+  },
   {
     regex: "^src/",
-    message: "Use @app/* imports instead of absolute src/ imports.",
+    message: "Use a workspace alias instead of absolute src/ imports.",
   },
 ];
 
@@ -36,6 +47,7 @@ export default defineConfig(
       "editor/src-tauri",
       "editor/playwright-report",
       "editor/test-results",
+      "portal/public",
     ],
   },
   eslint.configs.recommended,
@@ -92,6 +104,45 @@ export default defineConfig(
       ],
     },
   },
+  // The shared/ layer is the seed of a future packages/shared-ui — it must
+  // only depend on third-party packages and on itself. If it ever imports
+  // from editor or portal layers, extraction to a standalone package later
+  // becomes a rewrite instead of a `git mv`.
+  {
+    files: ["shared/**/*.{js,mjs,jsx,ts,tsx}"],
+    rules: {
+      "no-restricted-imports": [
+        "error",
+        {
+          patterns: [
+            ...baseRestrictedImportPatterns,
+            {
+              regex: "^@app/",
+              message:
+                "shared/ must not depend on the editor layer (@app/* resolves into editor/src/).",
+            },
+            {
+              regex: "^@portal/",
+              message:
+                "shared/ must not depend on the portal layer. Use @shared/* or third-party imports only.",
+            },
+            {
+              regex: "^@core/",
+              message: "shared/ must not depend on editor/src/core/.",
+            },
+            {
+              regex: "^@proprietary/",
+              message: "shared/ must not depend on editor/src/proprietary/.",
+            },
+            {
+              regex: "^@tauri-apps/",
+              message: "shared/ must remain web-compatible (no Tauri APIs).",
+            },
+          ],
+        },
+      ],
+    },
+  },
   // Folders that have been cleaned up and are now conformant - stricter rules enforced here
   {
     files: [
@@ -99,6 +150,8 @@ export default defineConfig(
       "editor/src/proprietary/**/*.{js,mjs,jsx,ts,tsx}",
       "editor/src/saas/**/*.{js,mjs,jsx,ts,tsx}",
       "editor/src/prototypes/**/*.{js,mjs,jsx,ts,tsx}",
+      "portal/src/**/*.{js,mjs,jsx,ts,tsx}",
+      "shared/**/*.{js,mjs,jsx,ts,tsx}",
     ],
     languageOptions: {
       parserOptions: {

frontend/package.json

@@ -104,6 +104,10 @@
     "@iconify-json/material-symbols": "^1.2.53",
     "@iconify/utils": "^3.1.0",
     "@playwright/test": "^1.55.0",
+    "@storybook/addon-a11y": "^9.1.20",
+    "@storybook/addon-docs": "^9.1.20",
+    "@storybook/addon-themes": "^9.1.20",
+    "@storybook/react-vite": "^9.1.20",
     "@tauri-apps/cli": "^2.9.6",
     "@testing-library/dom": "^10.4.1",
     "@testing-library/jest-dom": "^6.8.0",
@@ -128,6 +132,8 @@
     "jsdom": "^27.0.0",
     "license-checker": "^25.0.1",
     "madge": "^8.0.0",
+    "msw": "^2.14.6",
+    "msw-storybook-addon": "^2.0.7",
     "postcss": "^8.5.12",
     "postcss-cli": "^11.0.1",
     "postcss-preset-mantine": "^1.18.0",
@@ -135,6 +141,7 @@
     "prettier": "^3.8.1",
     "puppeteer": "^24.25.0",
     "rollup-plugin-visualizer": "^7.0.1",
+    "storybook": "^9.1.20",
     "tsx": "^4.21.0",
     "typescript": "^5.9.2",
     "typescript-eslint": "^8.44.1",
@@ -153,5 +160,10 @@
   },
   "overrides": {
     "devalue": "^5.8.1"
+  },
+  "msw": {
+    "workerDirectory": [
+      "portal/public"
+    ]
   }
 }

frontend/portal/LICENSE

@@ -0,0 +1,51 @@
+Stirling PDF User License
+
+Copyright (c) 2025 Stirling PDF Inc.
+
+License Scope & Usage Rights
+
+Production use of the Stirling PDF Software is only permitted with a valid Stirling PDF User License.
+
+For purposes of this license, “the Software” refers to the Stirling PDF application and any associated documentation files
+provided by Stirling PDF Inc. You or your organization may not use the Software in production, at scale, or for business-critical
+processes unless you have agreed to, and remain in compliance with, the Stirling PDF Subscription Terms of Service
+(https://www.stirlingpdf.com/terms) or another valid agreement with Stirling PDF, and hold an active User License subscription
+covering the appropriate number of licensed users.
+
+Trial and Minimal Use
+
+You may use the Software without a paid subscription for the sole purposes of internal trial, evaluation, or minimal use, provided that:
+* Use is limited to the capabilities and restrictions defined by the Software itself;
+* You do not copy, distribute, sublicense, reverse-engineer, or use the Software in client-facing or commercial contexts.
+
+Continued use beyond this scope requires a valid Stirling PDF User License.
+
+Modifications and Derivative Works
+
+You may modify the Software only for development or internal testing purposes. Any such modifications or derivative works:
+
+* May not be deployed in production environments without a valid User License;
+* May not be distributed or sublicensed;
+* Remain the intellectual property of Stirling PDF and/or its licensors;
+* May only be used, copied, or exploited in accordance with the terms of a valid Stirling PDF User License subscription.
+
+Prohibited Actions
+
+Unless explicitly permitted by a paid license or separate agreement, you may not:
+
+* Use the Software in production environments;
+* Copy, merge, distribute, sublicense, or sell the Software;
+* Remove or alter any licensing or copyright notices;
+* Circumvent access restrictions or licensing requirements.
+
+Third-Party Components
+
+The Stirling PDF Software may include components subject to separate open source licenses. Such components remain governed by
+their original license terms as provided by their respective owners.
+
+Disclaimer
+
+THE SOFTWARE IS PROVIDED “AS IS,” WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT, OR OTHERWISE, ARISING FROM, OUT OF, OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

frontend/portal/index.html

@@ -0,0 +1,15 @@
+<!doctype html>
+<html lang="en-GB">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="theme-color" content="#0f172a" />
+    <meta name="description" content="Stirling developer portal" />
+    <title>Stirling — Developer Portal</title>
+  </head>
+  <body>
+    <noscript>You need to enable JavaScript to run this app.</noscript>
+    <div id="root"></div>
+    <script type="module" src="./main.tsx"></script>
+  </body>
+</html>

frontend/portal/main.tsx

@@ -0,0 +1,34 @@
+/// <reference types="vite/client" />
+import { StrictMode } from "react";
+import { createRoot } from "react-dom/client";
+import { App } from "@portal/App";
+import { readMocksPreference } from "@portal/mocks/preference";
+
+// Mantine's prebuilt styles load first so SUI tokens/base can override on
+// conflicts — SUI is the primary design language, Mantine the escape hatch.
+import "@mantine/core/styles.css";
+import "@shared/tokens/tokens.css";
+import "@shared/tokens/base.css";
+
+const root = document.getElementById("root");
+if (!root) throw new Error("No #root element");
+
+// Start MSW before React mounts when the user has mocks enabled. The
+// preference defaults to ON in dev / OFF in production. The toggle in the
+// header flips it at runtime.
+async function bootstrap(): Promise<void> {
+  if (readMocksPreference()) {
+    // Dynamic import keeps MSW + every handler + every fixture out of any
+    // chunk that doesn't need to actually run the worker.
+    const { startMockWorker } = await import("@portal/mocks/browser");
+    await startMockWorker();
+  }
+
+  createRoot(root!).render(
+    <StrictMode>
+      <App />
+    </StrictMode>,
+  );
+}
+
+void bootstrap();

frontend/portal/public/mockServiceWorker.js

@@ -0,0 +1,349 @@
+/* eslint-disable */
+/* tslint:disable */
+
+/**
+ * Mock Service Worker.
+ * @see https://github.com/mswjs/msw
+ * - Please do NOT modify this file.
+ */
+
+const PACKAGE_VERSION = "2.14.6";
+const INTEGRITY_CHECKSUM = "4db4a41e972cec1b64cc569c66952d82";
+const IS_MOCKED_RESPONSE = Symbol("isMockedResponse");
+const activeClientIds = new Set();
+
+addEventListener("install", function () {
+  self.skipWaiting();
+});
+
+addEventListener("activate", function (event) {
+  event.waitUntil(self.clients.claim());
+});
+
+addEventListener("message", async function (event) {
+  const clientId = Reflect.get(event.source || {}, "id");
+
+  if (!clientId || !self.clients) {
+    return;
+  }
+
+  const client = await self.clients.get(clientId);
+
+  if (!client) {
+    return;
+  }
+
+  const allClients = await self.clients.matchAll({
+    type: "window",
+  });
+
+  switch (event.data) {
+    case "KEEPALIVE_REQUEST": {
+      sendToClient(client, {
+        type: "KEEPALIVE_RESPONSE",
+      });
+      break;
+    }
+
+    case "INTEGRITY_CHECK_REQUEST": {
+      sendToClient(client, {
+        type: "INTEGRITY_CHECK_RESPONSE",
+        payload: {
+          packageVersion: PACKAGE_VERSION,
+          checksum: INTEGRITY_CHECKSUM,
+        },
+      });
+      break;
+    }
+
+    case "MOCK_ACTIVATE": {
+      activeClientIds.add(clientId);
+
+      sendToClient(client, {
+        type: "MOCKING_ENABLED",
+        payload: {
+          client: {
+            id: client.id,
+            frameType: client.frameType,
+          },
+        },
+      });
+      break;
+    }
+
+    case "CLIENT_CLOSED": {
+      activeClientIds.delete(clientId);
+
+      const remainingClients = allClients.filter((client) => {
+        return client.id !== clientId;
+      });
+
+      // Unregister itself when there are no more clients
+      if (remainingClients.length === 0) {
+        self.registration.unregister();
+      }
+
+      break;
+    }
+  }
+});
+
+addEventListener("fetch", function (event) {
+  const requestInterceptedAt = Date.now();
+
+  // Bypass navigation requests.
+  if (event.request.mode === "navigate") {
+    return;
+  }
+
+  // Opening the DevTools triggers the "only-if-cached" request
+  // that cannot be handled by the worker. Bypass such requests.
+  if (
+    event.request.cache === "only-if-cached" &&
+    event.request.mode !== "same-origin"
+  ) {
+    return;
+  }
+
+  // Bypass all requests when there are no active clients.
+  // Prevents the self-unregistered worked from handling requests
+  // after it's been terminated (still remains active until the next reload).
+  if (activeClientIds.size === 0) {
+    return;
+  }
+
+  const requestId = crypto.randomUUID();
+  event.respondWith(handleRequest(event, requestId, requestInterceptedAt));
+});
+
+/**
+ * @param {FetchEvent} event
+ * @param {string} requestId
+ * @param {number} requestInterceptedAt
+ */
+async function handleRequest(event, requestId, requestInterceptedAt) {
+  const client = await resolveMainClient(event);
+  const requestCloneForEvents = event.request.clone();
+  const response = await getResponse(
+    event,
+    client,
+    requestId,
+    requestInterceptedAt,
+  );
+
+  // Send back the response clone for the "response:*" life-cycle events.
+  // Ensure MSW is active and ready to handle the message, otherwise
+  // this message will pend indefinitely.
+  if (client && activeClientIds.has(client.id)) {
+    const serializedRequest = await serializeRequest(requestCloneForEvents);
+
+    // Clone the response so both the client and the library could consume it.
+    const responseClone = response.clone();
+
+    sendToClient(
+      client,
+      {
+        type: "RESPONSE",
+        payload: {
+          isMockedResponse: IS_MOCKED_RESPONSE in response,
+          request: {
+            id: requestId,
+            ...serializedRequest,
+          },
+          response: {
+            type: responseClone.type,
+            status: responseClone.status,
+            statusText: responseClone.statusText,
+            headers: Object.fromEntries(responseClone.headers.entries()),
+            body: responseClone.body,
+          },
+        },
+      },
+      responseClone.body ? [serializedRequest.body, responseClone.body] : [],
+    );
+  }
+
+  return response;
+}
+
+/**
+ * Resolve the main client for the given event.
+ * Client that issues a request doesn't necessarily equal the client
+ * that registered the worker. It's with the latter the worker should
+ * communicate with during the response resolving phase.
+ * @param {FetchEvent} event
+ * @returns {Promise<Client | undefined>}
+ */
+async function resolveMainClient(event) {
+  const client = await self.clients.get(event.clientId);
+
+  if (activeClientIds.has(event.clientId)) {
+    return client;
+  }
+
+  if (client?.frameType === "top-level") {
+    return client;
+  }
+
+  const allClients = await self.clients.matchAll({
+    type: "window",
+  });
+
+  return allClients
+    .filter((client) => {
+      // Get only those clients that are currently visible.
+      return client.visibilityState === "visible";
+    })
+    .find((client) => {
+      // Find the client ID that's recorded in the
+      // set of clients that have registered the worker.
+      return activeClientIds.has(client.id);
+    });
+}
+
+/**
+ * @param {FetchEvent} event
+ * @param {Client | undefined} client
+ * @param {string} requestId
+ * @param {number} requestInterceptedAt
+ * @returns {Promise<Response>}
+ */
+async function getResponse(event, client, requestId, requestInterceptedAt) {
+  // Clone the request because it might've been already used
+  // (i.e. its body has been read and sent to the client).
+  const requestClone = event.request.clone();
+
+  function passthrough() {
+    // Cast the request headers to a new Headers instance
+    // so the headers can be manipulated with.
+    const headers = new Headers(requestClone.headers);
+
+    // Remove the "accept" header value that marked this request as passthrough.
+    // This prevents request alteration and also keeps it compliant with the
+    // user-defined CORS policies.
+    const acceptHeader = headers.get("accept");
+    if (acceptHeader) {
+      const values = acceptHeader.split(",").map((value) => value.trim());
+      const filteredValues = values.filter(
+        (value) => value !== "msw/passthrough",
+      );
+
+      if (filteredValues.length > 0) {
+        headers.set("accept", filteredValues.join(", "));
+      } else {
+        headers.delete("accept");
+      }
+    }
+
+    return fetch(requestClone, { headers });
+  }
+
+  // Bypass mocking when the client is not active.
+  if (!client) {
+    return passthrough();
+  }
+
+  // Bypass initial page load requests (i.e. static assets).
+  // The absence of the immediate/parent client in the map of the active clients
+  // means that MSW hasn't dispatched the "MOCK_ACTIVATE" event yet
+  // and is not ready to handle requests.
+  if (!activeClientIds.has(client.id)) {
+    return passthrough();
+  }
+
+  // Notify the client that a request has been intercepted.
+  const serializedRequest = await serializeRequest(event.request);
+  const clientMessage = await sendToClient(
+    client,
+    {
+      type: "REQUEST",
+      payload: {
+        id: requestId,
+        interceptedAt: requestInterceptedAt,
+        ...serializedRequest,
+      },
+    },
+    [serializedRequest.body],
+  );
+
+  switch (clientMessage.type) {
+    case "MOCK_RESPONSE": {
+      return respondWithMock(clientMessage.data);
+    }
+
+    case "PASSTHROUGH": {
+      return passthrough();
+    }
+  }
+
+  return passthrough();
+}
+
+/**
+ * @param {Client} client
+ * @param {any} message
+ * @param {Array<Transferable>} transferrables
+ * @returns {Promise<any>}
+ */
+function sendToClient(client, message, transferrables = []) {
+  return new Promise((resolve, reject) => {
+    const channel = new MessageChannel();
+
+    channel.port1.onmessage = (event) => {
+      if (event.data && event.data.error) {
+        return reject(event.data.error);
+      }
+
+      resolve(event.data);
+    };
+
+    client.postMessage(message, [
+      channel.port2,
+      ...transferrables.filter(Boolean),
+    ]);
+  });
+}
+
+/**
+ * @param {Response} response
+ * @returns {Response}
+ */
+function respondWithMock(response) {
+  // Setting response status code to 0 is a no-op.
+  // However, when responding with a "Response.error()", the produced Response
+  // instance will have status code set to 0. Since it's not possible to create
+  // a Response instance with status code 0, handle that use-case separately.
+  if (response.status === 0) {
+    return Response.error();
+  }
+
+  const mockedResponse = new Response(response.body, response);
+
+  Reflect.defineProperty(mockedResponse, IS_MOCKED_RESPONSE, {
+    value: true,
+    enumerable: true,
+  });
+
+  return mockedResponse;
+}
+
+/**
+ * @param {Request} request
+ */
+async function serializeRequest(request) {
+  return {
+    url: request.url,
+    mode: request.mode,
+    method: request.method,
+    headers: Object.fromEntries(request.headers.entries()),
+    cache: request.cache,
+    credentials: request.credentials,
+    destination: request.destination,
+    integrity: request.integrity,
+    redirect: request.redirect,
+    referrer: request.referrer,
+    referrerPolicy: request.referrerPolicy,
+    body: await request.arrayBuffer(),
+    keepalive: request.keepalive,
+  };
+}

frontend/portal/src/App.tsx

@@ -0,0 +1,75 @@
+import { useEffect, type ReactNode } from "react";
+import { BrowserRouter } from "react-router-dom";
+import { MantineProvider } from "@mantine/core";
+import { ThemeProvider, useTheme } from "@portal/contexts/ThemeContext";
+import { TierProvider } from "@portal/contexts/TierContext";
+import { UIProvider, useUI } from "@portal/contexts/UIContext";
+import { mantineTheme } from "@portal/theme/mantineTheme";
+import { AppShell } from "@portal/components/AppShell";
+import { AssistantButton } from "@portal/components/AssistantButton";
+import { AssistantPanel } from "@portal/components/AssistantPanel";
+import { SearchModal } from "@portal/components/SearchModal";
+import { ViewRouter } from "@portal/ViewRouter";
+
+/**
+ * Binds Mantine's colour scheme to the portal's own ThemeProvider so Mantine
+ * components follow the same light/dark switch as the SUI primitives. Must sit
+ * inside <ThemeProvider> to read useTheme().
+ */
+function PortalMantineProvider({ children }: { children: ReactNode }) {
+  const { theme } = useTheme();
+  return (
+    <MantineProvider theme={mantineTheme} forceColorScheme={theme}>
+      {children}
+    </MantineProvider>
+  );
+}
+
+/**
+ * Global keyboard shortcuts. Lives below the UIProvider so it can dispatch
+ * into the overlay state. Currently just ⌘K / Ctrl+K to toggle the search
+ * palette.
+ */
+function GlobalShortcuts() {
+  const { toggleSearch, closeSearch } = useUI();
+
+  useEffect(() => {
+    function onKey(e: KeyboardEvent) {
+      const isCmdK = (e.metaKey || e.ctrlKey) && e.key.toLowerCase() === "k";
+      if (isCmdK) {
+        e.preventDefault();
+        toggleSearch();
+        return;
+      }
+      if (e.key === "Escape") {
+        closeSearch();
+      }
+    }
+    document.addEventListener("keydown", onKey);
+    return () => document.removeEventListener("keydown", onKey);
+  }, [toggleSearch, closeSearch]);
+
+  return null;
+}
+
+export function App() {
+  return (
+    <ThemeProvider>
+      <PortalMantineProvider>
+        <TierProvider initialTier="pro">
+          <BrowserRouter>
+            <UIProvider>
+              <GlobalShortcuts />
+              <AppShell>
+                <ViewRouter />
+              </AppShell>
+              <AssistantButton />
+              <AssistantPanel />
+              <SearchModal />
+            </UIProvider>
+          </BrowserRouter>
+        </TierProvider>
+      </PortalMantineProvider>
+    </ThemeProvider>
+  );
+}

frontend/portal/src/ViewRouter.tsx

@@ -0,0 +1,67 @@
+import { Navigate, Route, Routes } from "react-router-dom";
+import { Home } from "@portal/views/Home";
+import { Documents } from "@portal/views/Documents";
+import { Placeholder } from "@portal/views/Placeholder";
+import { VIEW_PATHS, type ViewId } from "@portal/contexts/ViewContext";
+
+const PLACEHOLDER_PHASES: Partial<Record<ViewId, string>> = {
+  editor: "Phase 8 — Editor",
+  sources: "Phase 5 — Sources & Agents",
+  pipelines: "Phase 4 — Pipelines",
+  infrastructure: "Phase 7 — Infrastructure",
+  usage: "Phase 8 — Usage & Billing",
+  docs: "Phase 8 — Developer Docs",
+  settings: "Settings — modal overlay",
+};
+
+export function ViewRouter() {
+  return (
+    <Routes>
+      <Route path={VIEW_PATHS.home} element={<Home />} />
+      <Route
+        path={VIEW_PATHS.pipelines}
+        element={
+          <Placeholder view="pipelines" phase={PLACEHOLDER_PHASES.pipelines} />
+        }
+      />
+      <Route
+        path={VIEW_PATHS.editor}
+        element={
+          <Placeholder view="editor" phase={PLACEHOLDER_PHASES.editor} />
+        }
+      />
+      <Route
+        path={VIEW_PATHS.sources}
+        element={
+          <Placeholder view="sources" phase={PLACEHOLDER_PHASES.sources} />
+        }
+      />
+      <Route path={VIEW_PATHS.documents} element={<Documents />} />
+      <Route
+        path={VIEW_PATHS.infrastructure}
+        element={
+          <Placeholder
+            view="infrastructure"
+            phase={PLACEHOLDER_PHASES.infrastructure}
+          />
+        }
+      />
+      <Route
+        path={VIEW_PATHS.usage}
+        element={<Placeholder view="usage" phase={PLACEHOLDER_PHASES.usage} />}
+      />
+      <Route
+        path={VIEW_PATHS.docs}
+        element={<Placeholder view="docs" phase={PLACEHOLDER_PHASES.docs} />}
+      />
+      <Route
+        path={VIEW_PATHS.settings}
+        element={
+          <Placeholder view="settings" phase={PLACEHOLDER_PHASES.settings} />
+        }
+      />
+      {/* Unknown paths land on Home. */}
+      <Route path="*" element={<Navigate to={VIEW_PATHS.home} replace />} />
+    </Routes>
+  );
+}

frontend/portal/src/api/assistant.ts

@@ -0,0 +1,15 @@
+import { httpJson } from "@portal/api/http";
+
+/** GET /v1/assistant/suggestions */
+export async function fetchAssistantSuggestions(): Promise<readonly string[]> {
+  return httpJson<readonly string[]>("/v1/assistant/suggestions");
+}
+
+/** POST /v1/assistant/messages */
+export async function getAssistantReply(input: string): Promise<string> {
+  const res = await httpJson<{ reply: string }>("/v1/assistant/messages", {
+    method: "POST",
+    body: { input },
+  });
+  return res.reply;
+}

frontend/portal/src/api/endpoints.ts

@@ -0,0 +1,15 @@
+import { httpJson } from "@portal/api/http";
+import type { Vertical } from "@shared/data/endpoints";
+
+export type {
+  Endpoint,
+  EndpointSchema,
+  EndpointTierGate,
+  Vertical,
+  VerticalKey,
+} from "@shared/data/endpoints";
+
+/** GET /v1/endpoints — verticals plus their endpoints. */
+export async function fetchVerticals(): Promise<Vertical[]> {
+  return httpJson<Vertical[]>("/v1/endpoints");
+}

frontend/portal/src/api/home.ts

@@ -0,0 +1,44 @@
+import { httpJson } from "@portal/api/http";
+import type {
+  ActivityEvent,
+  KpiEntry,
+  OnboardingStep,
+  RegionHealth,
+  UsageSeriesResponse,
+} from "@portal/mocks/home";
+import type { Tier } from "@portal/contexts/TierContext";
+
+export type {
+  ActivityEvent,
+  ActivityKind,
+  KpiEntry,
+  OnboardingStep,
+  RegionHealth,
+  UsagePoint,
+  UsageSeriesResponse,
+} from "@portal/mocks/home";
+
+/** GET /v1/analytics/usage?window=30d */
+export async function fetchUsageSeries(): Promise<UsageSeriesResponse> {
+  return httpJson<UsageSeriesResponse>("/v1/analytics/usage?window=30d");
+}
+
+/** GET /v1/activity?limit=8 */
+export async function fetchRecentActivity(): Promise<ActivityEvent[]> {
+  return httpJson<ActivityEvent[]>("/v1/activity?limit=8");
+}
+
+/** GET /v1/home/kpis?tier=… */
+export async function fetchHomeKpis(tier: Tier): Promise<KpiEntry[]> {
+  return httpJson<KpiEntry[]>(`/v1/home/kpis?tier=${encodeURIComponent(tier)}`);
+}
+
+/** GET /v1/regions/health (Enterprise) */
+export async function fetchRegionHealth(): Promise<RegionHealth[]> {
+  return httpJson<RegionHealth[]>("/v1/regions/health");
+}
+
+/** GET /v1/onboarding (Free) */
+export async function fetchOnboarding(): Promise<OnboardingStep[]> {
+  return httpJson<OnboardingStep[]>("/v1/onboarding");
+}

frontend/portal/src/api/http.ts

@@ -0,0 +1,59 @@
+/**
+ * Shared HTTP plumbing for the portal's service layer.
+ *
+ * Every `api/*.ts` module calls {@link httpJson}, which issues a real `fetch`.
+ * In dev and Storybook those requests are intercepted by the MSW handlers in
+ * `mocks/` and answered with fixture data; pointing at a real backend is just
+ * a matter of not registering MSW. Consumers don't change either way.
+ */
+
+export interface HttpRequestOptions {
+  method?: "GET" | "POST" | "PUT" | "PATCH" | "DELETE";
+  body?: unknown;
+  /** Extra headers; Content-Type and Accept are set automatically. */
+  headers?: Record<string, string>;
+  signal?: AbortSignal;
+}
+
+export class HttpError extends Error {
+  constructor(
+    public readonly status: number,
+    public readonly statusText: string,
+    public readonly body: unknown,
+  ) {
+    super(`${status} ${statusText}`);
+    this.name = "HttpError";
+  }
+}
+
+/**
+ * Thin JSON fetch wrapper used by every api module. In dev/Storybook the
+ * request is served by MSW; against a real backend it hits the network.
+ */
+export async function httpJson<T>(
+  path: string,
+  options: HttpRequestOptions = {},
+): Promise<T> {
+  const res = await fetch(path, {
+    method: options.method ?? "GET",
+    headers: {
+      Accept: "application/json",
+      ...(options.body !== undefined
+        ? { "Content-Type": "application/json" }
+        : {}),
+      ...options.headers,
+    },
+    body: options.body !== undefined ? JSON.stringify(options.body) : undefined,
+    signal: options.signal,
+  });
+  if (!res.ok) {
+    let body: unknown = null;
+    try {
+      body = await res.json();
+    } catch {
+      // ignore — non-JSON error response
+    }
+    throw new HttpError(res.status, res.statusText, body);
+  }
+  return (await res.json()) as T;
+}

frontend/portal/src/api/notifications.ts

@@ -0,0 +1,19 @@
+import { httpJson } from "@portal/api/http";
+import type {
+  Notification,
+  NotificationCategory,
+} from "@portal/mocks/notifications";
+
+export type { Notification, NotificationCategory };
+
+/** GET /v1/notifications */
+export async function fetchNotifications(): Promise<Notification[]> {
+  return httpJson<Notification[]>("/v1/notifications");
+}
+
+/** POST /v1/notifications/mark-all-read */
+export async function markAllNotificationsRead(): Promise<void> {
+  await httpJson<{ ok: true }>("/v1/notifications/mark-all-read", {
+    method: "POST",
+  });
+}

frontend/portal/src/api/ops.ts

@@ -0,0 +1,37 @@
+import { HttpError, httpJson } from "@portal/api/http";
+import type { FeaturedOp, OpResultMap } from "@portal/mocks/ops";
+
+export type { FeaturedOp, OpResultMap };
+
+/** GET /v1/ops/featured */
+export async function fetchFeaturedOps(): Promise<FeaturedOp[]> {
+  return httpJson<FeaturedOp[]>("/v1/ops/featured");
+}
+
+export class UnknownOpError extends Error {
+  constructor(public readonly opId: string) {
+    super(`Unknown op: ${opId}`);
+    this.name = "UnknownOpError";
+  }
+}
+
+/** POST /v1/ops/{opId}/run */
+export async function runSingleOp(
+  opId: string,
+  sample: string,
+): Promise<{ result: OpResultMap; durationMs: number }> {
+  try {
+    return await httpJson<{ result: OpResultMap; durationMs: number }>(
+      `/v1/ops/${encodeURIComponent(opId)}/run`,
+      {
+        method: "POST",
+        body: { sample },
+      },
+    );
+  } catch (err) {
+    if (err instanceof HttpError && err.status === 404) {
+      throw new UnknownOpError(opId);
+    }
+    throw err;
+  }
+}

frontend/portal/src/api/search.ts

@@ -0,0 +1,9 @@
+import { httpJson } from "@portal/api/http";
+import type { QuickAction } from "@portal/mocks/search";
+
+export type { QuickAction };
+
+/** GET /v1/search/quick-actions */
+export async function fetchQuickActions(): Promise<QuickAction[]> {
+  return httpJson<QuickAction[]>("/v1/search/quick-actions");
+}

frontend/portal/src/components/AppShell.css

@@ -0,0 +1,19 @@
+.portal-shell {
+  display: flex;
+  min-height: 100vh;
+  background: var(--color-bg);
+  color: var(--color-text-2);
+}
+
+.portal-shell__main {
+  flex: 1 1 auto;
+  display: flex;
+  flex-direction: column;
+  min-width: 0; /* prevent grid blowout on narrow content */
+}
+
+.portal-shell__view {
+  flex: 1 1 auto;
+  overflow-y: auto;
+  animation: fadeInUp var(--motion-enter) both;
+}

frontend/portal/src/components/AppShell.tsx

@@ -0,0 +1,21 @@
+import type { ReactNode } from "react";
+import { Sidebar } from "@portal/components/Sidebar";
+import { Header } from "@portal/components/Header";
+import "@portal/components/AppShell.css";
+
+/**
+ * Two-column layout: fixed-width sidebar on the left, sticky header + scrolling
+ * main column on the right. The Sidebar and Header read their state from
+ * context, so this shell stays prop-free.
+ */
+export function AppShell({ children }: { children: ReactNode }) {
+  return (
+    <div className="portal-shell">
+      <Sidebar />
+      <div className="portal-shell__main">
+        <Header />
+        <main className="portal-shell__view">{children}</main>
+      </div>
+    </div>
+  );
+}

frontend/portal/src/components/AssistantButton.css

@@ -0,0 +1,35 @@
+.portal-assistant-btn {
+  position: fixed;
+  bottom: 1.5rem;
+  right: 1.5rem;
+  width: 3rem;
+  height: 3rem;
+  border-radius: 50%;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  color: #fff;
+  background: linear-gradient(
+    135deg,
+    var(--color-blue) 0%,
+    var(--color-purple) 100%
+  );
+  box-shadow:
+    0 0.5rem 1.25rem rgba(59, 130, 246, 0.35),
+    inset 0 0.0625rem 0 rgba(255, 255, 255, 0.2);
+  transition:
+    transform var(--motion-base),
+    box-shadow var(--motion-base);
+  z-index: 40;
+}
+
+.portal-assistant-btn:hover {
+  transform: scale(1.08);
+  box-shadow:
+    0 0.75rem 1.75rem rgba(59, 130, 246, 0.45),
+    inset 0 0.0625rem 0 rgba(255, 255, 255, 0.25);
+}
+
+.portal-assistant-btn:active {
+  transform: scale(1.02);
+}

frontend/portal/src/components/AssistantButton.tsx

@@ -0,0 +1,36 @@
+import { useUI } from "@portal/contexts/UIContext";
+import { SparklesIcon } from "@portal/components/icons";
+import "@portal/components/AssistantButton.css";
+
+export function AssistantButton() {
+  const { assistantOpen, toggleAssistant } = useUI();
+  return (
+    <button
+      type="button"
+      className={"portal-assistant-btn" + (assistantOpen ? " is-active" : "")}
+      onClick={toggleAssistant}
+      aria-label={assistantOpen ? "Close assistant" : "Open assistant"}
+      aria-expanded={assistantOpen}
+      title="Assistant"
+    >
+      {assistantOpen ? (
+        <svg
+          viewBox="0 0 24 24"
+          width="20"
+          height="20"
+          fill="none"
+          stroke="currentColor"
+          strokeWidth={2}
+          strokeLinecap="round"
+          strokeLinejoin="round"
+          aria-hidden
+        >
+          <line x1="18" y1="6" x2="6" y2="18" />
+          <line x1="6" y1="6" x2="18" y2="18" />
+        </svg>
+      ) : (
+        <SparklesIcon size={22} />
+      )}
+    </button>
+  );
+}

frontend/portal/src/components/AssistantPanel.css

@@ -0,0 +1,189 @@
+.portal-assistant {
+  position: fixed;
+  bottom: 5.5rem;
+  right: 1.5rem;
+  width: 23.75rem;
+  height: 32.5rem;
+  max-height: calc(100vh - 7rem);
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-xl);
+  box-shadow: var(--shadow-lg);
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+  z-index: 35;
+  animation: fadeInUp var(--motion-enter) both;
+}
+
+.portal-assistant__header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.75rem;
+  padding: 0.625rem 0.875rem;
+  color: var(--color-text-on-accent);
+  background: linear-gradient(
+    135deg,
+    var(--color-blue) 0%,
+    var(--color-purple) 100%
+  );
+}
+
+.portal-assistant__header-left {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
+.portal-assistant__title {
+  font-size: 0.875rem;
+  font-weight: 600;
+}
+
+.portal-assistant__close {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 1.5rem;
+  height: 1.5rem;
+  border-radius: var(--radius-sm);
+  color: rgba(255, 255, 255, 0.85);
+  transition:
+    background var(--motion-fast),
+    color var(--motion-fast);
+}
+.portal-assistant__close:hover {
+  background: rgba(255, 255, 255, 0.15);
+  color: var(--color-text-on-accent);
+}
+
+.portal-assistant__messages {
+  flex: 1 1 auto;
+  overflow-y: auto;
+  padding: 0.875rem;
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+  background: var(--color-bg-subtle);
+}
+
+.portal-assistant__suggestions {
+  margin-bottom: 0.25rem;
+}
+
+.portal-assistant__suggestions-eyebrow {
+  font-size: 0.6875rem;
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+  color: var(--color-section-label);
+  margin-bottom: 0.5rem;
+}
+
+.portal-assistant__suggestions-list {
+  display: flex;
+  flex-direction: column;
+  gap: 0.375rem;
+}
+
+.portal-assistant__suggestion {
+  padding: 0.4375rem 0.625rem;
+  font-size: 0.8125rem;
+  text-align: left;
+  color: var(--color-text-2);
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  transition:
+    border-color var(--motion-fast),
+    background var(--motion-fast);
+}
+.portal-assistant__suggestion:hover {
+  background: var(--color-bg-hover);
+  border-color: var(--color-blue-border);
+}
+
+.portal-assistant__bubble {
+  max-width: 80%;
+  padding: 0.5rem 0.75rem;
+  font-size: 0.8125rem;
+  line-height: 1.5;
+  border-radius: var(--radius-md);
+  animation: fadeInUp var(--motion-enter) both;
+  word-wrap: break-word;
+}
+
+.portal-assistant__bubble--user {
+  align-self: flex-end;
+  background: var(--color-blue);
+  color: var(--color-text-on-accent);
+  border-bottom-right-radius: 0.25rem;
+}
+
+.portal-assistant__bubble--assistant {
+  align-self: flex-start;
+  background: var(--color-surface);
+  color: var(--color-text-2);
+  border: 1px solid var(--color-border);
+  border-bottom-left-radius: 0.25rem;
+}
+
+.portal-assistant__typing {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.25rem;
+}
+.portal-assistant__typing span {
+  width: 0.375rem;
+  height: 0.375rem;
+  border-radius: 50%;
+  background: var(--color-text-5);
+  animation: pulse 1.2s ease-in-out infinite;
+}
+.portal-assistant__typing span:nth-child(2) {
+  animation-delay: 0.15s;
+}
+.portal-assistant__typing span:nth-child(3) {
+  animation-delay: 0.3s;
+}
+
+.portal-assistant__input-row {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.625rem 0.75rem;
+  border-top: 1px solid var(--color-border);
+  background: var(--color-surface);
+}
+
+.portal-assistant__input {
+  flex: 1 1 auto;
+  font: inherit;
+  font-size: 0.8125rem;
+  background: transparent;
+  border: 1px solid var(--color-border-input);
+  border-radius: var(--radius-md);
+  padding: 0.4375rem 0.625rem;
+  color: var(--color-text-1);
+  outline: none;
+  transition: border-color var(--motion-fast);
+}
+.portal-assistant__input:focus {
+  border-color: var(--color-blue);
+}
+
+.portal-assistant__send {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 2rem;
+  height: 2rem;
+  border-radius: var(--radius-md);
+  background: var(--grad-blue-btn);
+  color: var(--color-text-on-accent);
+  transition: opacity var(--motion-fast);
+}
+.portal-assistant__send:disabled {
+  opacity: 0.4;
+  cursor: not-allowed;
+}

frontend/portal/src/components/AssistantPanel.stories.tsx

@@ -0,0 +1,59 @@
+import type { Meta, StoryObj } from "@storybook/react-vite";
+import { useEffect } from "react";
+import { http, HttpResponse, delay } from "msw";
+import { AssistantPanel } from "@portal/components/AssistantPanel";
+import { useUI } from "@portal/contexts/UIContext";
+
+function ForceOpen() {
+  const { openAssistant } = useUI();
+  useEffect(() => {
+    openAssistant();
+  }, [openAssistant]);
+  return null;
+}
+
+const meta: Meta<typeof AssistantPanel> = {
+  title: "Portal/Assistant/AssistantPanel",
+  component: AssistantPanel,
+  parameters: { layout: "fullscreen" },
+  decorators: [
+    (S) => (
+      <div style={{ minHeight: "100vh", background: "var(--color-bg)" }}>
+        <ForceOpen />
+        <S />
+      </div>
+    ),
+  ],
+};
+export default meta;
+type Story = StoryObj<typeof AssistantPanel>;
+
+export const SuggestionsOnly: Story = {};
+
+export const SlowReply: Story = {
+  parameters: {
+    msw: {
+      handlers: [
+        http.post("/v1/assistant/messages", async () => {
+          await delay(3000);
+          return HttpResponse.json({
+            reply:
+              "After a long pause: here's a deliberately slow reply to demo the typing indicator under real network latency.",
+          });
+        }),
+      ],
+    },
+  },
+};
+
+export const ReplyFails: Story = {
+  parameters: {
+    msw: {
+      handlers: [
+        http.post("/v1/assistant/messages", () =>
+          HttpResponse.json({ error: "rate limit exceeded" }, { status: 429 }),
+        ),
+      ],
+    },
+  },
+};

frontend/portal/src/components/AssistantPanel.tsx

@@ -0,0 +1,169 @@
+import { useEffect, useRef, useState } from "react";
+import { useUI } from "@portal/contexts/UIContext";
+import { useAsync } from "@portal/hooks/useAsync";
+import {
+  fetchAssistantSuggestions,
+  getAssistantReply,
+} from "@portal/api/assistant";
+import { CloseIcon, SendIcon, SparklesIcon } from "@portal/components/icons";
+import "@portal/components/AssistantPanel.css";
+
+interface Message {
+  id: number;
+  role: "user" | "assistant";
+  text: string;
+}
+
+export function AssistantPanel() {
+  const { assistantOpen, closeAssistant } = useUI();
+  const { data: suggestions } = useAsync<readonly string[]>(
+    () => fetchAssistantSuggestions(),
+    [],
+  );
+
+  const [messages, setMessages] = useState<Message[]>([]);
+  const [input, setInput] = useState("");
+  const [typing, setTyping] = useState(false);
+  const messagesRef = useRef<HTMLDivElement | null>(null);
+  const inputRef = useRef<HTMLInputElement | null>(null);
+  const nextIdRef = useRef(1);
+
+  useEffect(() => {
+    if (assistantOpen) {
+      const t = setTimeout(() => inputRef.current?.focus(), 60);
+      return () => clearTimeout(t);
+    }
+    return undefined;
+  }, [assistantOpen]);
+
+  useEffect(() => {
+    messagesRef.current?.scrollTo({
+      top: messagesRef.current.scrollHeight,
+      behavior: "smooth",
+    });
+  }, [messages, typing]);
+
+  async function send(text: string) {
+    const trimmed = text.trim();
+    if (!trimmed || typing) return;
+    const userMsg: Message = {
+      id: nextIdRef.current++,
+      role: "user",
+      text: trimmed,
+    };
+    setMessages((prev) => [...prev, userMsg]);
+    setInput("");
+    setTyping(true);
+
+    try {
+      const reply = await getAssistantReply(trimmed);
+      const assistantMsg: Message = {
+        id: nextIdRef.current++,
+        role: "assistant",
+        text: reply,
+      };
+      setMessages((prev) => [...prev, assistantMsg]);
+    } catch (err) {
+      const failMsg: Message = {
+        id: nextIdRef.current++,
+        role: "assistant",
+        text:
+          err instanceof Error
+            ? `Couldn't reach the assistant: ${err.message}`
+            : "Couldn't reach the assistant.",
+      };
+      setMessages((prev) => [...prev, failMsg]);
+    } finally {
+      setTyping(false);
+    }
+  }
+
+  if (!assistantOpen) return null;
+
+  return (
+    <aside className="portal-assistant" role="dialog" aria-label="Assistant">
+      <header className="portal-assistant__header">
+        <div className="portal-assistant__header-left">
+          <SparklesIcon size={16} />
+          <span className="portal-assistant__title">Assistant</span>
+        </div>
+        <button
+          type="button"
+          className="portal-assistant__close"
+          onClick={closeAssistant}
+          aria-label="Close assistant"
+        >
+          <CloseIcon size={16} />
+        </button>
+      </header>
+
+      <div className="portal-assistant__messages" ref={messagesRef}>
+        {messages.length === 0 && suggestions && (
+          <div className="portal-assistant__suggestions">
+            <div className="portal-assistant__suggestions-eyebrow">
+              Try asking
+            </div>
+            <div className="portal-assistant__suggestions-list">
+              {suggestions.map((s) => (
+                <button
+                  key={s}
+                  type="button"
+                  className="portal-assistant__suggestion"
+                  onClick={() => send(s)}
+                  disabled={typing}
+                >
+                  {s}
+                </button>
+              ))}
+            </div>
+          </div>
+        )}
+        {messages.map((m) => (
+          <div
+            key={m.id}
+            className={
+              "portal-assistant__bubble portal-assistant__bubble--" + m.role
+            }
+          >
+            {m.text}
+          </div>
+        ))}
+        {typing && (
+          <div className="portal-assistant__bubble portal-assistant__bubble--assistant">
+            <span className="portal-assistant__typing" aria-label="Typing">
+              <span />
+              <span />
+              <span />
+            </span>
+          </div>
+        )}
+      </div>
+
+      <form
+        className="portal-assistant__input-row"
+        onSubmit={(e) => {
+          e.preventDefault();
+          send(input);
+        }}
+      >
+        <input
+          ref={inputRef}
+          value={input}
+          onChange={(e) => setInput(e.target.value)}
+          placeholder="Ask about Stirling…"
+          aria-label="Ask the assistant"
+          className="portal-assistant__input"
+          disabled={typing}
+        />
+        <button
+          type="submit"
+          className="portal-assistant__send"
+          disabled={!input.trim() || typing}
+          aria-label="Send"
+        >
+          <SendIcon size={14} />
+        </button>
+      </form>
+    </aside>
+  );
+}

frontend/portal/src/components/DocumentTypeGrid.css

@@ -0,0 +1,227 @@
+.portal-doctype {
+  display: flex;
+  flex-direction: column;
+  gap: 1rem;
+}
+
+.portal-doctype__head {
+  display: flex;
+  flex-direction: column;
+  gap: 0.125rem;
+}
+
+.portal-doctype__title {
+  margin: 0;
+  font-size: 1.125rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+
+.portal-doctype__sub {
+  margin: 0;
+  font-size: 0.8125rem;
+  color: var(--color-text-4);
+}
+
+/* Tabs */
+.portal-doctype__tabs {
+  display: flex;
+  gap: 0.375rem;
+  flex-wrap: wrap;
+}
+
+.portal-doctype__tab {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.375rem;
+  padding: 0.3125rem 0.625rem;
+  font-size: 0.75rem;
+  color: var(--color-text-3);
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-pill);
+  transition:
+    border-color var(--motion-fast),
+    background var(--motion-fast),
+    color var(--motion-fast);
+}
+
+.portal-doctype__tab:hover {
+  background: var(--color-bg-hover);
+  color: var(--color-text-1);
+}
+
+.portal-doctype__tab.is-active {
+  color: var(--portal-tab-accent, var(--color-blue));
+  border-color: var(--portal-tab-accent, var(--color-blue));
+  background: var(--color-surface);
+  font-weight: 500;
+}
+
+.portal-doctype__tab-dot {
+  width: 0.4375rem;
+  height: 0.4375rem;
+  border-radius: 50%;
+}
+
+.portal-doctype__tab-count {
+  font-size: 0.6875rem;
+  color: var(--color-text-5);
+}
+
+/* Vertical groups */
+.portal-doctype__groups {
+  display: flex;
+  flex-direction: column;
+  gap: 1.5rem;
+}
+
+.portal-doctype__group-head {
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  margin-bottom: 0.625rem;
+}
+
+.portal-doctype__group-title {
+  margin: 0;
+  font-size: 0.875rem;
+  font-weight: 600;
+  color: var(--color-text-2);
+}
+
+.portal-doctype__group-count {
+  font-size: 0.75rem;
+  color: var(--color-text-5);
+}
+
+.portal-doctype__scroller {
+  display: flex;
+  gap: 0.75rem;
+  overflow-x: auto;
+  padding-bottom: 0.5rem;
+  scroll-snap-type: x mandatory;
+  scrollbar-width: thin;
+}
+
+.portal-doctype__scroller::-webkit-scrollbar {
+  height: 0.375rem;
+}
+.portal-doctype__scroller::-webkit-scrollbar-thumb {
+  background: var(--color-border-hover);
+  border-radius: var(--radius-pill);
+}
+
+/* Cards */
+.portal-doctype__card {
+  flex: 0 0 17rem;
+  display: flex;
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  overflow: hidden;
+  scroll-snap-align: start;
+  transition:
+    border-color var(--motion-fast),
+    box-shadow var(--motion-fast),
+    transform var(--motion-fast);
+}
+
+.portal-doctype__card:hover {
+  border-color: var(--color-border-hover);
+  box-shadow: var(--shadow-md);
+  transform: translateY(-0.0625rem);
+}
+
+.portal-doctype__card-accent {
+  width: 0.25rem;
+  flex-shrink: 0;
+}
+
+.portal-doctype__card-body {
+  flex: 1 1 auto;
+  padding: 0.875rem 1rem;
+  display: flex;
+  flex-direction: column;
+  gap: 0.25rem;
+  min-width: 0;
+}
+
+.portal-doctype__card-eyebrow {
+  font-size: 0.625rem;
+  font-weight: 600;
+  letter-spacing: 0.08em;
+  color: var(--color-text-5);
+}
+
+.portal-doctype__card-title {
+  margin: 0.125rem 0 0;
+  font-size: 0.9375rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+
+.portal-doctype__card-desc {
+  margin: 0;
+  font-size: 0.75rem;
+  line-height: 1.45;
+  color: var(--color-text-4);
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
+  overflow: hidden;
+}
+
+.portal-doctype__card-meta {
+  margin-top: 0.5rem;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.5rem;
+  font-size: 0.6875rem;
+  color: var(--color-text-4);
+}
+
+.portal-doctype__regions {
+  font-family: var(--font-mono);
+}
+
+.portal-doctype__regions-more {
+  color: var(--color-text-5);
+}
+
+.portal-doctype__card-cta {
+  margin-top: 0.5rem;
+  font-size: 0.75rem;
+  font-weight: 500;
+  text-decoration: none;
+  transition: opacity var(--motion-fast);
+}
+
+.portal-doctype__card-cta:hover {
+  opacity: 0.8;
+}
+
+.portal-doctype__skel,
+.portal-doctype__card-skel {
+  border-radius: var(--radius-md);
+  background: linear-gradient(
+    90deg,
+    var(--color-bg-muted) 0%,
+    var(--color-bg-hover) 50%,
+    var(--color-bg-muted) 100%
+  );
+  background-size: 200% 100%;
+  animation: shimmer 1.4s linear infinite;
+}
+
+.portal-doctype__skel {
+  display: inline-block;
+  height: 0.75rem;
+}
+
+.portal-doctype__card-skel {
+  flex: 0 0 17rem;
+  height: 8rem;
+  border: 1px solid var(--color-border-light);
+}

frontend/portal/src/components/DocumentTypeGrid.stories.tsx

@@ -0,0 +1,41 @@
+import type { Meta, StoryObj } from "@storybook/react-vite";
+import { http, HttpResponse, delay } from "msw";
+import { DocumentTypeGrid } from "@portal/components/DocumentTypeGrid";
+
+const meta: Meta<typeof DocumentTypeGrid> = {
+  title: "Portal/Home/DocumentTypeGrid",
+  component: DocumentTypeGrid,
+  parameters: { layout: "padded" },
+  decorators: [
+    (S) => (
+      <div style={{ maxWidth: "72rem" }}>
+        <S />
+      </div>
+    ),
+  ],
+};
+export default meta;
+type Story = StoryObj<typeof DocumentTypeGrid>;
+
+export const Default: Story = {};
+
+export const Loading: Story = {
+  parameters: {
+    msw: {
+      handlers: [
+        http.get("/v1/endpoints", async () => {
+          await delay("infinite");
+          return HttpResponse.json([]);
+        }),
+      ],
+    },
+  },
+};
+
+export const Empty: Story = {
+  parameters: {
+    msw: {
+      handlers: [http.get("/v1/endpoints", () => HttpResponse.json([]))],
+    },
+  },
+};

frontend/portal/src/components/DocumentTypeGrid.tsx

@@ -0,0 +1,181 @@
+import { useState } from "react";
+import {
+  EmptyState,
+  Skeleton,
+  StatusBadge,
+  Tabs,
+  type TabItem,
+} from "@shared/components";
+import { useAsync, useSectionFlags } from "@portal/hooks/useAsync";
+import {
+  fetchVerticals,
+  type Endpoint,
+  type Vertical,
+  type VerticalKey,
+} from "@portal/api/endpoints";
+import "@portal/components/DocumentTypeGrid.css";
+
+type ActiveTab = VerticalKey | "all";
+
+const TIER_LABEL = ["Free", "Paid", "Enterprise"] as const;
+const TIER_TONE = ["success", "info", "purple"] as const;
+
+function tierBadge(tier: 0 | 1 | 2) {
+  return (
+    <StatusBadge tone={TIER_TONE[tier]} size="sm">
+      {TIER_LABEL[tier]}
+    </StatusBadge>
+  );
+}
+
+function EndpointCard({
+  endpoint,
+  vertical,
+}: {
+  endpoint: Endpoint;
+  vertical: Vertical;
+}) {
+  const visibleRegions = endpoint.regions.slice(0, 2);
+  const extraRegions = endpoint.regions.length - visibleRegions.length;
+  return (
+    <article className="portal-doctype__card">
+      <div
+        className="portal-doctype__card-accent"
+        style={{ background: vertical.color }}
+        aria-hidden
+      />
+      <div className="portal-doctype__card-body">
+        <div className="portal-doctype__card-eyebrow">
+          {vertical.label.toUpperCase()}
+        </div>
+        <h3 className="portal-doctype__card-title">{endpoint.name}</h3>
+        <p className="portal-doctype__card-desc">{endpoint.desc}</p>
+        <div className="portal-doctype__card-meta">
+          <span className="portal-doctype__regions">
+            {visibleRegions.join(" · ")}
+            {extraRegions > 0 && (
+              <span className="portal-doctype__regions-more">
+                {" "}
+                +{extraRegions} more
+              </span>
+            )}
+          </span>
+          {tierBadge(endpoint.tier)}
+        </div>
+        <a
+          className="portal-doctype__card-cta"
+          style={{ color: vertical.color }}
+          href={`#${endpoint.endpoint}`}
+          onClick={(e) => e.preventDefault()}
+        >
+          Explore <span aria-hidden>→</span>
+        </a>
+      </div>
+    </article>
+  );
+}
+
+function GridSkeleton() {
+  return (
+    <div className="portal-doctype__groups" aria-hidden>
+      {Array.from({ length: 2 }).map((_, gi) => (
+        <div key={gi} className="portal-doctype__group">
+          <div className="portal-doctype__group-head">
+            <Skeleton shape="circle" width="0.4375rem" height="0.4375rem" />
+            <Skeleton width="6rem" />
+          </div>
+          <div className="portal-doctype__scroller">
+            {Array.from({ length: 4 }).map((_, ci) => (
+              <Skeleton key={ci} shape="rect" width="17rem" height="8rem" />
+            ))}
+          </div>
+        </div>
+      ))}
+    </div>
+  );
+}
+
+export function DocumentTypeGrid() {
+  const [tab, setTab] = useState<ActiveTab>("all");
+  const state = useAsync<Vertical[]>(() => fetchVerticals(), []);
+  const { data: verticals } = state;
+  const { isLoading, isEmpty } = useSectionFlags(state);
+  const hasVerticals = verticals !== null && verticals.length > 0;
+
+  const tabItems: TabItem<ActiveTab>[] = hasVerticals
+    ? [
+        { key: "all", label: "All" },
+        ...verticals.map<TabItem<ActiveTab>>((v) => ({
+          key: v.key,
+          label: v.label,
+          count: v.endpoints.length,
+          accentColor: v.color,
+          dotColor: v.color,
+        })),
+      ]
+    : [];
+
+  return (
+    <section className="portal-doctype" aria-label="Document types">
+      <header className="portal-doctype__head">
+        <h2 className="portal-doctype__title">Document types</h2>
+        <p className="portal-doctype__sub">
+          Typed endpoints across every supported vertical — each carries a
+          schema, region availability and tier gate.
+        </p>
+      </header>
+
+      {hasVerticals && (
+        <Tabs<ActiveTab>
+          items={tabItems}
+          activeKey={tab}
+          onChange={setTab}
+          ariaLabel="Document type verticals"
+        />
+      )}
+
+      {isLoading && <GridSkeleton />}
+
+      {isEmpty && (
+        <EmptyState
+          title="No document types yet"
+          description="When endpoints are registered they'll appear in this catalogue."
+        />
+      )}
+
+      {hasVerticals && (
+        <div className="portal-doctype__groups">
+          {(tab === "all"
+            ? verticals
+            : verticals.filter((v) => v.key === tab)
+          ).map((v) => (
+            <div key={v.key} className="portal-doctype__group">
+              {tab === "all" && (
+                <div className="portal-doctype__group-head">
+                  <span
+                    className="portal-doctype__tab-dot"
+                    style={{ background: v.color }}
+                    aria-hidden
+                  />
+                  <h3 className="portal-doctype__group-title">{v.label}</h3>
+                  <span className="portal-doctype__group-count">
+                    {v.endpoints.length} endpoints
+                  </span>
+                </div>
+              )}
+              <div className="portal-doctype__scroller">
+                {v.endpoints.map((endpoint) => (
+                  <EndpointCard
+                    key={endpoint.endpoint}
+                    endpoint={endpoint}
+                    vertical={v}
+                  />
+                ))}
+              </div>
+            </div>
+          ))}
+        </div>
+      )}
+    </section>
+  );
+}

frontend/portal/src/components/Header.css

@@ -0,0 +1,182 @@
+.portal-header {
+  height: 3.25rem;
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  padding: 0 1rem;
+  background: var(--color-header-bg);
+  border-bottom: 1px solid var(--color-header-border);
+  position: sticky;
+  top: 0;
+  z-index: 10;
+}
+
+.portal-header__left {
+  flex: 0 0 auto;
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  min-width: 12.5rem;
+}
+
+.portal-header__breadcrumb {
+  font-size: 0.8125rem;
+  font-weight: 500;
+  color: var(--color-header-text);
+}
+
+/* Search trigger */
+.portal-header__search {
+  flex: 0 1 20rem;
+  margin: 0 auto;
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.375rem 0.625rem;
+  background: var(--color-search-bg);
+  border: 1px solid var(--color-search-border);
+  border-radius: var(--radius-md);
+  color: var(--color-search-text);
+  font-size: 0.75rem;
+  transition:
+    border-color var(--motion-fast),
+    background var(--motion-fast);
+}
+.portal-header__search:hover {
+  border-color: var(--color-search-border-hover);
+}
+
+.portal-header__search-placeholder {
+  flex: 1 1 auto;
+  text-align: left;
+}
+
+.portal-header__search-kbd {
+  font-family: var(--font-mono);
+  font-size: 0.6875rem;
+  padding: 0.0625rem 0.25rem;
+  border-radius: var(--radius-xs);
+  background: var(--color-bg-muted);
+  color: var(--color-text-4);
+}
+
+/* Right cluster */
+.portal-header__right {
+  flex: 0 0 auto;
+  display: flex;
+  align-items: center;
+  gap: 0.375rem;
+}
+
+.portal-header__icon-btn {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 2rem;
+  height: 2rem;
+  border-radius: var(--radius-md);
+  color: var(--color-bell-stroke, var(--color-text-3));
+  position: relative;
+  transition:
+    background var(--motion-fast),
+    color var(--motion-fast);
+}
+.portal-header__icon-btn:hover {
+  background: var(--color-bg-hover);
+  color: var(--color-text-1);
+}
+
+.portal-header__bell-dot {
+  position: absolute;
+  top: 0.375rem;
+  right: 0.4375rem;
+  width: 0.4375rem;
+  height: 0.4375rem;
+  border-radius: 50%;
+  background: var(--color-red);
+  border: 2px solid var(--color-header-bg);
+  box-sizing: content-box;
+}
+
+/* Tier switcher */
+.portal-header__tier {
+  position: relative;
+}
+
+.portal-header__tier-btn {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.375rem;
+  padding: 0.3125rem 0.625rem;
+  font-size: 0.75rem;
+  color: var(--color-text-2);
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  transition:
+    border-color var(--motion-fast),
+    background var(--motion-fast);
+}
+.portal-header__tier-btn:hover {
+  background: var(--color-bg-hover);
+  border-color: var(--color-border-hover);
+}
+
+.portal-header__tier-dot {
+  width: 0.4375rem;
+  height: 0.4375rem;
+  border-radius: 50%;
+}
+
+.portal-header__tier-label {
+  font-weight: 500;
+}
+
+.portal-header__tier-menu {
+  position: absolute;
+  top: calc(100% + 0.25rem);
+  right: 0;
+  min-width: 12rem;
+  margin: 0;
+  padding: 0.25rem;
+  list-style: none;
+  background: var(--color-dropdown-bg);
+  border: 1px solid var(--color-dropdown-border);
+  border-radius: var(--radius-md);
+  box-shadow: var(--shadow-lg);
+  z-index: 20;
+  animation: fadeInUp var(--motion-enter) both;
+}
+
+.portal-header__tier-option {
+  width: 100%;
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  padding: 0.4375rem 0.625rem;
+  font-size: 0.8125rem;
+  color: var(--color-text-2);
+  border-radius: var(--radius-sm);
+  text-align: left;
+}
+.portal-header__tier-option:hover {
+  background: var(--color-dropdown-hover);
+}
+.portal-header__tier-option.is-active {
+  background: var(--color-nav-active);
+  color: var(--color-nav-active-text);
+}
+
+/* Avatar */
+.portal-header__avatar {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 2rem;
+  height: 2rem;
+  border-radius: 50%;
+  background: var(--grad-blue-btn);
+  color: #fff;
+  font-size: 0.8125rem;
+  font-weight: 600;
+}

frontend/portal/src/components/Header.stories.tsx

@@ -0,0 +1,26 @@
+import type { Meta, StoryObj } from "@storybook/react-vite";
+import { Header } from "@portal/components/Header";
+
+const meta: Meta<typeof Header> = {
+  title: "Portal/Shell/Header",
+  component: Header,
+  parameters: { layout: "fullscreen" },
+  decorators: [
+    (S) => (
+      <div style={{ background: "var(--color-bg)" }}>
+        <S />
+        <div style={{ padding: "1.5rem", color: "var(--color-text-3)" }}>
+          Page body would render below the header.
+        </div>
+      </div>
+    ),
+  ],
+};
+export default meta;
+type Story = StoryObj<typeof Header>;
+
+export const Default: Story = {};
+
+export const FreeTier: Story = { globals: { tier: "free" } };
+export const ProTier: Story = { globals: { tier: "pro" } };
+export const EnterpriseTier: Story = { globals: { tier: "enterprise" } };

frontend/portal/src/components/Header.tsx

@@ -0,0 +1,104 @@
+import { Avatar, Dropdown } from "@shared/components";
+import { useTheme } from "@portal/contexts/ThemeContext";
+import { useTier, TIER_INFO, type Tier } from "@portal/contexts/TierContext";
+import { useView, VIEW_LABELS } from "@portal/contexts/ViewContext";
+import { useUI } from "@portal/contexts/UIContext";
+import {
+  SearchIcon,
+  SunIcon,
+  MoonIcon,
+  ChevronDownIcon,
+} from "@portal/components/icons";
+import { NotificationsDropdown } from "@portal/components/NotificationsDropdown";
+import { MocksToggle } from "@portal/components/MocksToggle";
+import "@portal/components/Header.css";
+
+function ThemeToggle() {
+  const { theme, toggle } = useTheme();
+  return (
+    <button
+      type="button"
+      className="portal-header__icon-btn"
+      onClick={toggle}
+      aria-label={
+        theme === "light" ? "Switch to dark theme" : "Switch to light theme"
+      }
+      title={theme === "light" ? "Dark mode" : "Light mode"}
+    >
+      {theme === "light" ? <MoonIcon size={16} /> : <SunIcon size={16} />}
+    </button>
+  );
+}
+
+function TierSwitcher() {
+  const { tier, setTier } = useTier();
+  const info = TIER_INFO[tier];
+  return (
+    <Dropdown.Root align="end">
+      <Dropdown.Trigger>
+        <button type="button" className="portal-header__tier-btn">
+          <span
+            className="portal-header__tier-dot"
+            style={{ background: info.dotColor }}
+            aria-hidden
+          />
+          <span className="portal-header__tier-label">{info.label}</span>
+          <ChevronDownIcon size={14} />
+        </button>
+      </Dropdown.Trigger>
+      <Dropdown.Menu width="12rem">
+        {(Object.keys(TIER_INFO) as Tier[]).map((id) => (
+          <Dropdown.Item
+            key={id}
+            active={tier === id}
+            onSelect={() => setTier(id)}
+            leading={
+              <span
+                className="portal-header__tier-dot"
+                style={{ background: TIER_INFO[id].dotColor }}
+                aria-hidden
+              />
+            }
+          >
+            {TIER_INFO[id].label}
+          </Dropdown.Item>
+        ))}
+      </Dropdown.Menu>
+    </Dropdown.Root>
+  );
+}
+
+export function Header() {
+  const { activeView } = useView();
+  const { openSearch } = useUI();
+  return (
+    <header className="portal-header">
+      <div className="portal-header__left">
+        <span className="portal-header__breadcrumb">
+          {VIEW_LABELS[activeView]}
+        </span>
+      </div>
+
+      <button
+        type="button"
+        className="portal-header__search"
+        aria-label="Search"
+        onClick={openSearch}
+      >
+        <SearchIcon size={14} />
+        <span className="portal-header__search-placeholder">Search…</span>
+        <span className="portal-header__search-kbd" aria-hidden>
+          ⌘K
+        </span>
+      </button>
+
+      <div className="portal-header__right">
+        <MocksToggle />
+        <ThemeToggle />
+        <NotificationsDropdown />
+        <TierSwitcher />
+        <Avatar name="Reece" size="md" tone="blue" />
+      </div>
+    </header>
+  );
+}

frontend/portal/src/components/MocksToggle.css

@@ -0,0 +1,51 @@
+.portal-mocks-toggle {
+  display: inline-flex;
+  align-items: center;
+  gap: var(--space-1_5);
+  padding: var(--space-1) var(--space-2);
+  font-family: var(--font-mono);
+  font-size: 0.6875rem;
+  font-weight: 600;
+  letter-spacing: 0.04em;
+  text-transform: uppercase;
+  border-radius: var(--radius-sm);
+  border: 1px dashed transparent;
+  transition:
+    background var(--motion-fast),
+    border-color var(--motion-fast),
+    color var(--motion-fast);
+}
+
+.portal-mocks-toggle.is-on {
+  color: var(--color-amber-dark);
+  background: var(--color-amber-light);
+  border-color: var(--color-amber-border);
+}
+
+.portal-mocks-toggle.is-off {
+  color: var(--color-text-4);
+  background: var(--color-bg-muted);
+  border-color: var(--color-border);
+}
+
+.portal-mocks-toggle:hover {
+  filter: brightness(1.04);
+}
+
+.portal-mocks-toggle.is-pending {
+  opacity: 0.6;
+  cursor: progress;
+}
+
+.portal-mocks-toggle__dot {
+  width: 0.4375rem;
+  height: 0.4375rem;
+  border-radius: 50%;
+  background: currentColor;
+  box-shadow: 0 0 0 2px color-mix(in srgb, currentColor 28%, transparent);
+}
+
+.portal-mocks-toggle.is-off .portal-mocks-toggle__dot {
+  background: var(--color-text-5);
+  box-shadow: none;
+}

frontend/portal/src/components/MocksToggle.tsx

@@ -0,0 +1,54 @@
+/// <reference types="vite/client" />
+import { useState } from "react";
+import {
+  readMocksPreference,
+  writeMocksPreference,
+} from "@portal/mocks/preference";
+import "@portal/components/MocksToggle.css";
+
+/**
+ * Dev-only header chip that flips MSW interception on and off. Persists the
+ * preference to localStorage so it survives reloads. Hidden entirely in
+ * production builds — there's no MSW worker to toggle there.
+ *
+ * Toggling reloads the page. Without a reload, components that already
+ * fetched data via useAsync keep showing the cached result, which makes the
+ * toggle feel like it does nothing. A reload gives a clean view of what the
+ * app looks like with/without mocks.
+ */
+export function MocksToggle() {
+  const [enabled] = useState(() => readMocksPreference());
+  const [pending, setPending] = useState(false);
+
+  if (!import.meta.env.DEV) return null;
+
+  function toggle() {
+    if (pending) return;
+    setPending(true);
+    writeMocksPreference(!enabled);
+    window.location.reload();
+  }
+
+  return (
+    <button
+      type="button"
+      className={
+        "portal-mocks-toggle" +
+        (enabled ? " is-on" : " is-off") +
+        (pending ? " is-pending" : "")
+      }
+      onClick={toggle}
+      aria-pressed={enabled}
+      title={
+        enabled
+          ? "Mock data ON — fetch calls are intercepted by MSW. Click to switch to the real network (reloads the page)."
+          : "Mock data OFF — fetch calls go to the real network. Click to re-enable mocks (reloads the page)."
+      }
+    >
+      <span className="portal-mocks-toggle__dot" aria-hidden />
+      <span className="portal-mocks-toggle__label">
+        Mocks {enabled ? "ON" : "OFF"}
+      </span>
+    </button>
+  );
+}

frontend/portal/src/components/NotificationsDropdown.css

@@ -0,0 +1,137 @@
+.portal-notif {
+  position: relative;
+}
+
+.portal-notif__panel {
+  position: absolute;
+  top: calc(100% + 0.25rem);
+  right: 0;
+  width: 22.5rem;
+  background: var(--color-notif-bg, var(--color-surface));
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  box-shadow: var(--shadow-lg);
+  overflow: hidden;
+  z-index: 25;
+  animation: fadeInUp var(--motion-enter) both;
+}
+
+.portal-notif__header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0.625rem 0.875rem;
+  border-bottom: 1px solid var(--color-border-light);
+  font-size: 0.8125rem;
+}
+
+.portal-notif__title {
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+
+.portal-notif__count {
+  font-size: 0.6875rem;
+  font-weight: 500;
+  color: var(--color-blue);
+  padding: 0.125rem 0.375rem;
+  background: var(--color-blue-light);
+  border-radius: var(--radius-pill);
+}
+
+.portal-notif__list {
+  list-style: none;
+  margin: 0;
+  padding: 0;
+  max-height: 22rem;
+  overflow-y: auto;
+}
+
+.portal-notif__item {
+  display: flex;
+  align-items: flex-start;
+  gap: 0.625rem;
+  padding: 0.625rem 0.875rem;
+  border-bottom: 1px solid var(--color-border-light);
+  cursor: pointer;
+  transition: background var(--motion-fast);
+}
+
+.portal-notif__item:last-child {
+  border-bottom: none;
+}
+
+.portal-notif__item:hover {
+  background: var(--color-bg-hover);
+}
+
+.portal-notif__dot {
+  flex: 0 0 auto;
+  width: 0.5rem;
+  height: 0.5rem;
+  border-radius: 50%;
+  margin-top: 0.4375rem;
+}
+
+.portal-notif__body {
+  flex: 1 1 auto;
+  min-width: 0;
+}
+
+.portal-notif__item-title {
+  font-size: 0.8125rem;
+  font-weight: 500;
+  color: var(--color-text-1);
+  margin-bottom: 0.125rem;
+}
+
+.portal-notif__desc {
+  font-size: 0.75rem;
+  color: var(--color-text-4);
+  line-height: 1.4;
+  margin-bottom: 0.25rem;
+}
+
+.portal-notif__time {
+  font-size: 0.6875rem;
+  color: var(--color-text-5);
+}
+
+.portal-notif__footer {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0.5rem 0.625rem;
+  border-top: 1px solid var(--color-border-light);
+  background: var(--color-bg-subtle);
+}
+
+.portal-notif__action {
+  font-size: 0.75rem;
+  font-weight: 500;
+  color: var(--color-blue);
+  padding: 0.25rem 0.5rem;
+  border-radius: var(--radius-sm);
+  transition: background var(--motion-fast);
+}
+
+.portal-notif__action:hover:not(:disabled) {
+  background: var(--color-bg-hover);
+}
+
+.portal-notif__action:disabled {
+  opacity: 0.4;
+  cursor: not-allowed;
+}
+
+.portal-notif__count--quiet {
+  background: var(--color-bg-muted);
+  color: var(--color-text-5);
+}
+
+.portal-notif__empty {
+  padding: 1.5rem 1rem;
+  text-align: center;
+  font-size: 0.8125rem;
+  color: var(--color-text-4);
+}

frontend/portal/src/components/NotificationsDropdown.stories.tsx

@@ -0,0 +1,76 @@
+import type { Meta, StoryObj } from "@storybook/react-vite";
+import { http, HttpResponse, delay } from "msw";
+import { NotificationsDropdown } from "@portal/components/NotificationsDropdown";
+import { NOTIFICATIONS } from "@portal/mocks/notifications";
+
+const meta: Meta<typeof NotificationsDropdown> = {
+  title: "Portal/Header/NotificationsDropdown",
+  component: NotificationsDropdown,
+  parameters: { layout: "centered" },
+  decorators: [
+    (S) => (
+      <div
+        style={{
+          padding: "4rem 8rem",
+          minHeight: "30rem",
+          background: "var(--color-bg)",
+        }}
+      >
+        <S />
+      </div>
+    ),
+  ],
+};
+export default meta;
+type Story = StoryObj<typeof NotificationsDropdown>;
+
+export const Default: Story = {};
+
+export const Empty: Story = {
+  parameters: {
+    msw: {
+      handlers: [http.get("/v1/notifications", () => HttpResponse.json([]))],
+    },
+  },
+};
+
+export const Loading: Story = {
+  parameters: {
+    msw: {
+      handlers: [
+        http.get("/v1/notifications", async () => {
+          await delay("infinite");
+          return HttpResponse.json([]);
+        }),
+      ],
+    },
+  },
+};
+
+export const HighVolume: Story = {
+  parameters: {
+    msw: {
+      handlers: [
+        http.get("/v1/notifications", () => {
+          const items = Array.from({ length: 24 }, (_, i) => ({
+            ...NOTIFICATIONS[i % NOTIFICATIONS.length],
+            id: `n${i + 1}`,
+          }));
+          return HttpResponse.json(items);
+        }),
+      ],
+    },
+  },
+};
+
+export const NetworkError: Story = {
+  parameters: {
+    msw: {
+      handlers: [
+        http.get("/v1/notifications", () =>
+          HttpResponse.json({ error: "Service unavailable" }, { status: 503 }),
+        ),
+      ],
+    },
+  },
+};

frontend/portal/src/components/NotificationsDropdown.tsx

@@ -0,0 +1,125 @@
+import { useState } from "react";
+import { Dropdown, EmptyState, Skeleton } from "@shared/components";
+import { BellIcon } from "@portal/components/icons";
+import { useAsync, useSectionFlags } from "@portal/hooks/useAsync";
+import {
+  fetchNotifications,
+  markAllNotificationsRead,
+  type Notification,
+  type NotificationCategory,
+} from "@portal/api/notifications";
+import "@portal/components/NotificationsDropdown.css";
+
+const CATEGORY_COLOUR: Record<NotificationCategory, string> = {
+  pipeline: "var(--color-blue)",
+  deploy: "var(--color-green)",
+  billing: "var(--color-amber)",
+  audit: "var(--color-purple)",
+  agent: "var(--color-cat-insurance)",
+  doc: "var(--color-cat-healthcare)",
+};
+
+export function NotificationsDropdown() {
+  const state = useAsync<Notification[]>(() => fetchNotifications(), []);
+  const { data: items } = state;
+  const { isLoading } = useSectionFlags(state);
+
+  // Optimistically clear on "mark all read"; revert if the request fails.
+  const [cleared, setCleared] = useState(false);
+  const visible = cleared ? [] : (items ?? []);
+
+  async function onMarkAllRead() {
+    setCleared(true);
+    try {
+      await markAllNotificationsRead();
+    } catch {
+      setCleared(false);
+    }
+  }
+
+  const isEmpty = !isLoading && visible.length === 0;
+  const hasUnread = visible.length > 0;
+
+  return (
+    <Dropdown.Root align="end">
+      <Dropdown.Trigger>
+        <button
+          type="button"
+          className="portal-header__icon-btn portal-header__icon-btn--badge"
+          aria-label={
+            hasUnread
+              ? `Notifications, ${visible.length} unread`
+              : "Notifications, no unread"
+          }
+        >
+          <BellIcon size={16} />
+          {hasUnread && (
+            <span className="portal-header__bell-dot" aria-hidden />
+          )}
+        </button>
+      </Dropdown.Trigger>
+      <Dropdown.Menu width="22.5rem" className="portal-notif__menu">
+        <div className="portal-notif__header">
+          <span className="portal-notif__title">Notifications</span>
+          {hasUnread ? (
+            <span className="portal-notif__count">{visible.length} new</span>
+          ) : isLoading ? (
+            <span className="portal-notif__count portal-notif__count--quiet">
+              loading
+            </span>
+          ) : (
+            <span className="portal-notif__count portal-notif__count--quiet">
+              all read
+            </span>
+          )}
+        </div>
+        {isLoading && (
+          <div className="portal-notif__loading">
+            <Skeleton height="0.875rem" />
+            <Skeleton height="0.6875rem" width="60%" />
+            <Skeleton height="0.875rem" />
+            <Skeleton height="0.6875rem" width="60%" />
+          </div>
+        )}
+        {isEmpty && (
+          <EmptyState
+            size="compact"
+            title="You're all caught up"
+            description="No new notifications."
+          />
+        )}
+        {!isLoading && !isEmpty && (
+          <ul className="portal-notif__list">
+            {visible.map((item) => (
+              <li key={item.id} className="portal-notif__item">
+                <span
+                  className="portal-notif__dot"
+                  style={{ background: CATEGORY_COLOUR[item.category] }}
+                  aria-hidden
+                />
+                <div className="portal-notif__body">
+                  <div className="portal-notif__item-title">{item.title}</div>
+                  <div className="portal-notif__desc">{item.description}</div>
+                  <div className="portal-notif__time">{item.time}</div>
+                </div>
+              </li>
+            ))}
+          </ul>
+        )}
+        <div className="portal-notif__footer">
+          <button
+            type="button"
+            className="portal-notif__action"
+            onClick={onMarkAllRead}
+            disabled={!hasUnread}
+          >
+            Mark all read
+          </button>
+          <button type="button" className="portal-notif__action">
+            View all
+          </button>
+        </div>
+      </Dropdown.Menu>
+    </Dropdown.Root>
+  );
+}

frontend/portal/src/components/PopularUseCases.css

@@ -0,0 +1,87 @@
+.portal-usecases {
+  display: flex;
+  flex-direction: column;
+  gap: 1rem;
+}
+
+.portal-usecases__head {
+  display: flex;
+  align-items: baseline;
+  justify-content: space-between;
+  gap: 0.5rem;
+}
+
+.portal-usecases__title {
+  margin: 0;
+  font-size: 1.125rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+
+.portal-usecases__viewall,
+.portal-usecases__cta {
+  background: none;
+  border: none;
+  padding: 0;
+  cursor: pointer;
+  font-family: inherit;
+  font-weight: 500;
+  display: inline-flex;
+  align-items: center;
+  gap: 0.25rem;
+  transition: opacity var(--motion-fast);
+}
+
+.portal-usecases__viewall {
+  font-size: 0.8125rem;
+  color: var(--color-blue);
+}
+
+.portal-usecases__viewall:hover,
+.portal-usecases__cta:hover {
+  opacity: 0.8;
+}
+
+.portal-usecases__grid {
+  display: grid;
+  grid-template-columns: repeat(2, 1fr);
+  gap: 0.875rem;
+}
+
+@media (max-width: 50rem) {
+  .portal-usecases__grid {
+    grid-template-columns: 1fr;
+  }
+}
+
+.portal-usecases__card {
+  display: flex;
+  flex-direction: column;
+  gap: 0.375rem;
+}
+
+.portal-usecases__eyebrow {
+  font-size: 0.625rem;
+  font-weight: 600;
+  letter-spacing: 0.08em;
+}
+
+.portal-usecases__card-title {
+  margin: 0.125rem 0 0;
+  font-size: 1rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+
+.portal-usecases__blurb {
+  margin: 0;
+  font-size: 0.8125rem;
+  line-height: 1.5;
+  color: var(--color-text-3);
+}
+
+.portal-usecases__cta {
+  margin-top: 0.5rem;
+  align-self: flex-start;
+  font-size: 0.8125rem;
+}

frontend/portal/src/components/PopularUseCases.tsx

@@ -0,0 +1,107 @@
+import { Card, type CardProps } from "@shared/components";
+import { useView } from "@portal/contexts/ViewContext";
+import "@portal/components/PopularUseCases.css";
+
+type Accent = NonNullable<CardProps["accent"]>;
+
+interface UseCase {
+  eyebrow: string;
+  title: string;
+  blurb: string;
+  cta: string;
+  accent: Accent;
+}
+
+const ACCENT_COLOR: Record<Accent, string> = {
+  blue: "var(--color-blue)",
+  purple: "var(--color-purple)",
+  green: "var(--color-green)",
+  amber: "var(--color-amber)",
+  red: "var(--color-red)",
+};
+
+/**
+ * Curated landing-page use cases — a teaser, not the full catalogue. The
+ * exhaustive per-vertical endpoint list lives on the Documents view; here we
+ * surface the four cross-cutting pipelines people reach for first. Copy mirrors
+ * the prototype's "Popular use cases" block.
+ */
+const USE_CASES: UseCase[] = [
+  {
+    eyebrow: "AUTO-ROUTING",
+    title: "Auto-classify and route incoming documents",
+    blurb:
+      "One classifier reads what arrived — KYC form, invoice, contract, COI — and routes to the right downstream pipeline. No manual triage, no docs in the wrong workflow.",
+    cta: "Build a classifier pipeline",
+    accent: "blue",
+  },
+  {
+    eyebrow: "PII REDACTION",
+    title: "Redact PII before it leaves your stack",
+    blurb:
+      "Strip sensitive fields before storage, indexing, or LLM processing. Schema-aware, per-field audit, BYOK or HYOK keys. Compliance at the document boundary, not per pipeline.",
+    cta: "See redaction pipelines",
+    accent: "red",
+  },
+  {
+    eyebrow: "TRAINING DATA",
+    title: "Turn PDFs into training data",
+    blurb:
+      "Batch-import an archive, redact PII, classify, chunk, and emit ready-to-load JSON for fine-tuning, eval sets, or RAG. Self-completing and replayable.",
+    cta: "Build a training-data pipeline",
+    accent: "purple",
+  },
+  {
+    eyebrow: "AUTHENTICITY",
+    title: "Verify signatures and detect tampering",
+    blurb:
+      "Cryptographic checks at the document boundary — signature validation, tamper detection, signing flows for outbound documents. Trust decisions in the pipeline, not your app code.",
+    cta: "Try authenticity check",
+    accent: "green",
+  },
+];
+
+export function PopularUseCases() {
+  const { setActiveView } = useView();
+  return (
+    <section className="portal-usecases" aria-label="Popular use cases">
+      <header className="portal-usecases__head">
+        <h2 className="portal-usecases__title">Popular use cases</h2>
+        <button
+          type="button"
+          className="portal-usecases__viewall"
+          onClick={() => setActiveView("pipelines")}
+        >
+          View all pipelines <span aria-hidden>→</span>
+        </button>
+      </header>
+      <div className="portal-usecases__grid">
+        {USE_CASES.map((uc) => (
+          <Card
+            key={uc.eyebrow}
+            accent={uc.accent}
+            padding="loose"
+            className="portal-usecases__card"
+          >
+            <span
+              className="portal-usecases__eyebrow"
+              style={{ color: ACCENT_COLOR[uc.accent] }}
+            >
+              {uc.eyebrow}
+            </span>
+            <h3 className="portal-usecases__card-title">{uc.title}</h3>
+            <p className="portal-usecases__blurb">{uc.blurb}</p>
+            <button
+              type="button"
+              className="portal-usecases__cta"
+              style={{ color: ACCENT_COLOR[uc.accent] }}
+              onClick={() => setActiveView("pipelines")}
+            >
+              {uc.cta} <span aria-hidden>→</span>
+            </button>
+          </Card>
+        ))}
+      </div>
+    </section>
+  );
+}

frontend/portal/src/components/RecentActivity.css

@@ -0,0 +1,138 @@
+.portal-activity {
+  display: flex;
+  flex-direction: column;
+}
+
+.portal-activity__head {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0.875rem 1rem;
+  border-bottom: 1px solid var(--color-border-light);
+}
+
+.portal-activity__title {
+  margin: 0;
+  font-size: 0.9375rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+
+.portal-activity__more {
+  font-size: 0.75rem;
+  font-weight: 500;
+  color: var(--color-blue);
+  padding: 0.25rem 0.5rem;
+  border-radius: var(--radius-sm);
+  transition: background var(--motion-fast);
+}
+
+.portal-activity__more:hover {
+  background: var(--color-bg-hover);
+}
+
+.portal-activity__list {
+  list-style: none;
+  margin: 0;
+  padding: 0;
+}
+
+.portal-activity__item {
+  display: flex;
+  gap: 0.75rem;
+  padding: 0.75rem 1rem;
+  border-bottom: 1px solid var(--color-border-light);
+  transition: background var(--motion-fast);
+}
+
+.portal-activity__item:last-child {
+  border-bottom: none;
+}
+
+.portal-activity__item:hover {
+  background: var(--color-bg-hover);
+}
+
+.portal-activity__rail {
+  width: 0.1875rem;
+  border-radius: var(--radius-pill);
+  flex-shrink: 0;
+}
+
+.portal-activity__body {
+  flex: 1 1 auto;
+  min-width: 0;
+}
+
+.portal-activity__row {
+  display: flex;
+  align-items: baseline;
+  justify-content: space-between;
+  gap: 0.5rem;
+}
+
+.portal-activity__action {
+  font-size: 0.8125rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+
+.portal-activity__time {
+  font-size: 0.6875rem;
+  color: var(--color-text-5);
+}
+
+.portal-activity__subject {
+  font-size: 0.75rem;
+  color: var(--color-text-3);
+  margin-top: 0.0625rem;
+}
+
+.portal-activity__detail-row {
+  margin-top: 0.375rem;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.5rem;
+}
+
+.portal-activity__detail {
+  font-size: 0.75rem;
+  color: var(--color-text-4);
+  font-family: var(--font-mono);
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  min-width: 0;
+}
+
+.portal-activity__item--skeleton {
+  cursor: default;
+}
+
+.portal-activity__item--skeleton .portal-activity__rail {
+  background: var(--color-border-light);
+}
+
+.portal-activity__skel {
+  height: 0.75rem;
+  border-radius: var(--radius-pill);
+  background: linear-gradient(
+    90deg,
+    var(--color-bg-muted) 0%,
+    var(--color-bg-hover) 50%,
+    var(--color-bg-muted) 100%
+  );
+  background-size: 200% 100%;
+  animation: shimmer 1.4s linear infinite;
+  margin-bottom: 0.375rem;
+}
+
+.portal-activity__skel--md {
+  width: 70%;
+}
+
+.portal-activity__skel--sm {
+  width: 50%;
+  height: 0.625rem;
+}

frontend/portal/src/components/RecentActivity.stories.tsx

@@ -0,0 +1,41 @@
+import type { Meta, StoryObj } from "@storybook/react-vite";
+import { http, HttpResponse, delay } from "msw";
+import { RecentActivity } from "@portal/components/RecentActivity";
+
+const meta: Meta<typeof RecentActivity> = {
+  title: "Portal/Home/RecentActivity",
+  component: RecentActivity,
+  parameters: { layout: "padded" },
+  decorators: [
+    (S) => (
+      <div style={{ maxWidth: "40rem" }}>
+        <S />
+      </div>
+    ),
+  ],
+};
+export default meta;
+type Story = StoryObj<typeof RecentActivity>;
+
+export const Default: Story = {};
+
+export const Loading: Story = {
+  parameters: {
+    msw: {
+      handlers: [
+        http.get("/v1/activity", async () => {
+          await delay("infinite");
+          return HttpResponse.json([]);
+        }),
+      ],
+    },
+  },
+};
+
+export const Empty: Story = {
+  parameters: {
+    msw: {
+      handlers: [http.get("/v1/activity", () => HttpResponse.json([]))],
+    },
+  },
+};

frontend/portal/src/components/RecentActivity.tsx

@@ -0,0 +1,94 @@
+import { Card, EmptyState, Skeleton, StatusBadge } from "@shared/components";
+import { useAsync, useSectionFlags } from "@portal/hooks/useAsync";
+import {
+  fetchRecentActivity,
+  type ActivityEvent,
+  type ActivityKind,
+} from "@portal/api/home";
+import "@portal/components/RecentActivity.css";
+
+const KIND_COLOUR: Record<ActivityKind, string> = {
+  "pipeline-run": "var(--color-blue)",
+  deploy: "var(--color-green)",
+  drift: "var(--color-amber)",
+  eval: "var(--color-purple)",
+  agent: "var(--color-cat-insurance)",
+  billing: "var(--color-red)",
+};
+
+export function RecentActivity() {
+  const state = useAsync<ActivityEvent[]>(() => fetchRecentActivity(), []);
+  const { data: events } = state;
+  const { isLoading, isEmpty } = useSectionFlags(state);
+
+  return (
+    <Card
+      padding="none"
+      className="portal-activity"
+      aria-label="Recent activity"
+    >
+      <header className="portal-activity__head">
+        <h2 className="portal-activity__title">Recent activity</h2>
+        <button type="button" className="portal-activity__more">
+          View all →
+        </button>
+      </header>
+
+      {isLoading && (
+        <ul className="portal-activity__list" aria-hidden>
+          {Array.from({ length: 5 }).map((_, i) => (
+            <li
+              key={i}
+              className="portal-activity__item portal-activity__item--skeleton"
+            >
+              <span className="portal-activity__rail" />
+              <div className="portal-activity__body">
+                <Skeleton width="70%" />
+                <Skeleton width="50%" height="0.625rem" />
+              </div>
+            </li>
+          ))}
+        </ul>
+      )}
+
+      {isEmpty && (
+        <EmptyState
+          size="compact"
+          title="Nothing here yet"
+          description="Pipeline runs, deploys and agent events will appear here."
+        />
+      )}
+
+      {events && events.length > 0 && (
+        <ol className="portal-activity__list">
+          {events.map((event) => (
+            <li key={event.id} className="portal-activity__item">
+              <span
+                className="portal-activity__rail"
+                style={{ background: KIND_COLOUR[event.kind] }}
+                aria-hidden
+              />
+              <div className="portal-activity__body">
+                <div className="portal-activity__row">
+                  <span className="portal-activity__action">
+                    {event.action}
+                  </span>
+                  <span className="portal-activity__time">{event.time}</span>
+                </div>
+                <div className="portal-activity__subject">{event.subject}</div>
+                <div className="portal-activity__detail-row">
+                  <span className="portal-activity__detail">
+                    {event.detail}
+                  </span>
+                  <StatusBadge tone={event.status} size="sm">
+                    {event.status}
+                  </StatusBadge>
+                </div>
+              </div>
+            </li>
+          ))}
+        </ol>
+      )}
+    </Card>
+  );
+}

frontend/portal/src/components/SearchModal.css

@@ -0,0 +1,70 @@
+.portal-search__input-row {
+  display: flex;
+  align-items: center;
+  gap: 0.625rem;
+  padding: 0.25rem 0.25rem 0.75rem;
+  border-bottom: 1px solid var(--color-border-light);
+  color: var(--color-text-4);
+}
+
+.portal-search__input {
+  flex: 1 1 auto;
+  font: inherit;
+  font-size: 0.9375rem;
+  background: transparent;
+  border: none;
+  outline: none;
+  color: var(--color-text-1);
+}
+
+.portal-search__input::placeholder {
+  color: var(--color-text-placeholder);
+}
+
+.portal-search__esc {
+  font-family: var(--font-mono);
+  font-size: 0.6875rem;
+  padding: 0.0625rem 0.375rem;
+  border-radius: var(--radius-xs);
+  background: var(--color-bg-muted);
+  color: var(--color-text-4);
+}
+
+.portal-search__results {
+  padding-top: 0.75rem;
+  display: flex;
+  flex-direction: column;
+  gap: 1rem;
+  max-height: 24rem;
+  overflow-y: auto;
+}
+
+.portal-search__group-label {
+  font-size: 0.6875rem;
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+  color: var(--color-section-label);
+  padding: 0 0.5rem 0.375rem;
+}
+
+.portal-search__item {
+  width: 100%;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0.5rem 0.625rem;
+  border-radius: var(--radius-sm);
+  color: var(--color-text-2);
+  font-size: 0.8125rem;
+  text-align: left;
+}
+
+.portal-search__item:hover {
+  background: var(--color-bg-hover);
+}
+
+.portal-search__item-hint {
+  font-family: var(--font-mono);
+  font-size: 0.6875rem;
+  color: var(--color-text-5);
+}

frontend/portal/src/components/SearchModal.stories.tsx

@@ -0,0 +1,41 @@
+import type { Meta, StoryObj } from "@storybook/react-vite";
+import { useEffect } from "react";
+import { http, HttpResponse } from "msw";
+import { SearchModal } from "@portal/components/SearchModal";
+import { useUI } from "@portal/contexts/UIContext";
+
+function ForceOpen() {
+  const { openSearch } = useUI();
+  useEffect(() => {
+    openSearch();
+  }, [openSearch]);
+  return null;
+}
+
+const meta: Meta<typeof SearchModal> = {
+  title: "Portal/Header/SearchModal",
+  component: SearchModal,
+  parameters: { layout: "fullscreen" },
+  decorators: [
+    (S) => (
+      <div style={{ minHeight: "100vh", background: "var(--color-bg)" }}>
+        <ForceOpen />
+        <S />
+      </div>
+    ),
+  ],
+};
+export default meta;
+type Story = StoryObj<typeof SearchModal>;
+
+export const Default: Story = {};
+
+export const EmptyCatalogue: Story = {
+  parameters: {
+    msw: {
+      handlers: [
+        http.get("/v1/search/quick-actions", () => HttpResponse.json([])),
+      ],
+    },
+  },
+};

frontend/portal/src/components/SearchModal.tsx

@@ -0,0 +1,121 @@
+import { useEffect, useMemo, useRef, useState } from "react";
+import { EmptyState, Modal, Skeleton } from "@shared/components";
+import { useUI } from "@portal/contexts/UIContext";
+import { useAsync, useSectionFlags } from "@portal/hooks/useAsync";
+import { fetchQuickActions, type QuickAction } from "@portal/api/search";
+import { SearchIcon } from "@portal/components/icons";
+import "@portal/components/SearchModal.css";
+
+export function SearchModal() {
+  const { searchOpen, closeSearch } = useUI();
+  const inputRef = useRef<HTMLInputElement | null>(null);
+  const [query, setQuery] = useState("");
+  const state = useAsync<QuickAction[]>(() => fetchQuickActions(), []);
+  const { data: actions } = state;
+  const { isLoading } = useSectionFlags(state);
+
+  useEffect(() => {
+    if (searchOpen) {
+      setQuery("");
+      const t = setTimeout(() => inputRef.current?.focus(), 0);
+      return () => clearTimeout(t);
+    }
+    return undefined;
+  }, [searchOpen]);
+
+  const filtered = useMemo(() => {
+    if (!actions) return [] as QuickAction[];
+    if (!query.trim()) return actions;
+    const needle = query.trim().toLowerCase();
+    return actions.filter((item) => item.label.toLowerCase().includes(needle));
+  }, [actions, query]);
+
+  const groups = useMemo(
+    () =>
+      filtered.reduce<Record<string, QuickAction[]>>((acc, item) => {
+        if (!acc[item.group]) acc[item.group] = [];
+        acc[item.group].push(item);
+        return acc;
+      }, {}),
+    [filtered],
+  );
+
+  const groupKeys = Object.keys(groups);
+  const isEmpty = !isLoading && groupKeys.length === 0;
+
+  return (
+    <Modal
+      open={searchOpen}
+      onClose={closeSearch}
+      width="lg"
+      ariaLabel="Search"
+    >
+      <div className="portal-search">
+        <div className="portal-search__input-row">
+          <SearchIcon size={16} />
+          <input
+            ref={inputRef}
+            value={query}
+            onChange={(e) => setQuery(e.target.value)}
+            placeholder="Search Stirling — endpoints, pipelines, docs…"
+            aria-label="Search"
+            className="portal-search__input"
+            autoComplete="off"
+            spellCheck={false}
+          />
+          <span className="portal-search__esc" aria-hidden>
+            ESC
+          </span>
+        </div>
+
+        <div className="portal-search__results">
+          {isLoading && (
+            <div className="portal-search__loading">
+              <Skeleton height="1rem" width="40%" />
+              <Skeleton height="0.875rem" />
+              <Skeleton height="0.875rem" width="80%" />
+              <Skeleton height="0.875rem" width="65%" />
+            </div>
+          )}
+          {isEmpty && (
+            <EmptyState
+              size="compact"
+              title={
+                query.trim()
+                  ? `No matches for "${query.trim()}"`
+                  : "No quick actions"
+              }
+              description={
+                query.trim()
+                  ? "Try a different keyword or browse the catalogue."
+                  : "Quick actions will appear here once they're available."
+              }
+            />
+          )}
+          {!isLoading &&
+            !isEmpty &&
+            Object.entries(groups).map(([group, items]) => (
+              <div key={group} className="portal-search__group">
+                <div className="portal-search__group-label">{group}</div>
+                {items.map((item) => (
+                  <button
+                    key={item.label}
+                    type="button"
+                    className="portal-search__item"
+                    onClick={closeSearch}
+                  >
+                    <span className="portal-search__item-label">
+                      {item.label}
+                    </span>
+                    <span className="portal-search__item-hint">
+                      {item.hint}
+                    </span>
+                  </button>
+                ))}
+              </div>
+            ))}
+        </div>
+      </div>
+    </Modal>
+  );
+}

frontend/portal/src/components/Sidebar.css

@@ -0,0 +1,130 @@
+.portal-sidebar {
+  width: 15rem;
+  height: 100vh;
+  background: var(--color-sidebar-bg);
+  border-right: 1px solid var(--color-sidebar-border);
+  display: flex;
+  flex-direction: column;
+  flex-shrink: 0;
+  position: sticky;
+  top: 0;
+}
+
+/* Logo block */
+.portal-sidebar__logo {
+  height: 3.1875rem; /* 51px */
+  padding: 0 0.875rem;
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  border-bottom: 1px solid var(--color-sidebar-divider);
+}
+
+.portal-sidebar__wordmark {
+  font-family: var(--font-brand);
+  font-size: 1.125rem;
+  font-weight: 700;
+  color: var(--color-logo-text);
+  letter-spacing: 0.02em;
+}
+
+.portal-sidebar__workspace {
+  margin-left: auto;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 1.25rem;
+  height: 1.25rem;
+  border-radius: var(--radius-sm);
+  color: var(--color-text-4);
+  transition:
+    background var(--motion-fast),
+    color var(--motion-fast);
+}
+.portal-sidebar__workspace:hover {
+  background: var(--color-bg-hover);
+  color: var(--color-text-2);
+}
+
+/* Nav body */
+.portal-sidebar__nav {
+  flex: 1 1 auto;
+  overflow-y: auto;
+  padding: 0.75rem 0.625rem;
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+}
+
+.portal-sidebar__group {
+  display: flex;
+  flex-direction: column;
+  gap: 0.125rem;
+}
+
+.portal-sidebar__divider {
+  height: 1px;
+  background: var(--color-sidebar-divider);
+  margin: 0.25rem 0;
+}
+
+/* Footer */
+.portal-sidebar__footer {
+  border-top: 1px solid var(--color-sidebar-divider);
+  padding: 0.5rem 0.625rem 0.75rem;
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+}
+
+.portal-sidebar__usage {
+  padding: 0.5rem 0.625rem;
+  font-size: 0.75rem;
+  color: var(--color-usage-text);
+}
+
+.portal-sidebar__usage-line {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.5rem;
+}
+
+.portal-sidebar__usage-label {
+  color: var(--color-text-4);
+}
+
+.portal-sidebar__usage-value {
+  color: var(--color-usage-value);
+  font-weight: 500;
+}
+
+.portal-sidebar__usage-track {
+  margin-top: 0.5rem;
+  height: 0.25rem;
+  background: var(--color-usage-track);
+  border-radius: var(--radius-pill);
+  overflow: hidden;
+}
+
+.portal-sidebar__usage-fill {
+  height: 100%;
+  background: var(--grad-blue-btn);
+  transition: width var(--motion-slow);
+}
+
+.portal-sidebar__plan {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.375rem;
+  color: var(--color-text-2);
+  font-weight: 500;
+}
+
+.portal-sidebar__plan-dot {
+  width: 0.4375rem;
+  height: 0.4375rem;
+  border-radius: 50%;
+  background: var(--color-green);
+  box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-green) 30%, transparent);
+}

frontend/portal/src/components/Sidebar.stories.tsx

@@ -0,0 +1,29 @@
+import type { Meta, StoryObj } from "@storybook/react-vite";
+import { Sidebar } from "@portal/components/Sidebar";
+
+const meta: Meta<typeof Sidebar> = {
+  title: "Portal/Shell/Sidebar",
+  component: Sidebar,
+  parameters: { layout: "fullscreen" },
+  decorators: [
+    (S) => (
+      <div
+        style={{
+          display: "flex",
+          height: "100vh",
+          background: "var(--color-bg)",
+        }}
+      >
+        <S />
+      </div>
+    ),
+  ],
+};
+export default meta;
+type Story = StoryObj<typeof Sidebar>;
+
+export const Default: Story = {};
+
+export const FreeTier: Story = { globals: { tier: "free" } };
+
+export const EnterpriseTier: Story = { globals: { tier: "enterprise" } };

frontend/portal/src/components/Sidebar.tsx

@@ -0,0 +1,174 @@
+import { NavItem } from "@shared/components";
+import { useView, type ViewId } from "@portal/contexts/ViewContext";
+import { useTier } from "@portal/contexts/TierContext";
+import { useAsync } from "@portal/hooks/useAsync";
+import { fetchHomeKpis, type KpiEntry } from "@portal/api/home";
+import {
+  HomeIcon,
+  EditorIcon,
+  SourcesIcon,
+  PipelinesIcon,
+  DocumentsIcon,
+  InfrastructureIcon,
+  UsageIcon,
+  DocsIcon,
+  SettingsIcon,
+  ChevronDownIcon,
+} from "@portal/components/icons";
+import "@portal/components/Sidebar.css";
+
+interface NavEntry {
+  id: ViewId;
+  label: string;
+  icon: React.ReactNode;
+}
+
+const GROUP_PRIMARY: NavEntry[] = [
+  { id: "home", label: "Home", icon: <HomeIcon /> },
+];
+
+const GROUP_OPERATIONAL: NavEntry[] = [
+  { id: "editor", label: "Editor", icon: <EditorIcon /> },
+  { id: "sources", label: "Sources", icon: <SourcesIcon /> },
+  { id: "pipelines", label: "Pipelines", icon: <PipelinesIcon /> },
+  { id: "documents", label: "Documents", icon: <DocumentsIcon /> },
+];
+
+const GROUP_PLATFORM: NavEntry[] = [
+  {
+    id: "infrastructure",
+    label: "Infrastructure",
+    icon: <InfrastructureIcon />,
+  },
+  { id: "usage", label: "Usage & Billing", icon: <UsageIcon /> },
+  { id: "docs", label: "Developer Docs", icon: <DocsIcon /> },
+];
+
+function StirlingMark() {
+  // The Stirling brand mark — two stacked parallelograms in the brand blues.
+  return (
+    <svg
+      width="22"
+      height="22"
+      viewBox="0 0 22 22"
+      aria-hidden
+      role="presentation"
+    >
+      <path d="M5 4 L20 4 L17 11 L2 11 Z" fill="var(--color-blue)" />
+      <path d="M5 11 L17 11 L14 18 L2 18 Z" fill="var(--color-blue-border)" />
+    </svg>
+  );
+}
+
+function UsageFooter() {
+  const { tier } = useTier();
+  // Read the same endpoint Home's KPI strip uses so the doc count here can't
+  // drift from the headline figure. The first KPI is always the doc total.
+  const { data: kpis, loading } = useAsync<KpiEntry[]>(
+    () => fetchHomeKpis(tier),
+    [tier],
+  );
+  const docs = loading ? undefined : kpis?.[0]?.value;
+
+  if (tier === "free") {
+    // The free doc KPI is formatted "used / cap"; parse it for the meter.
+    const [used, cap] =
+      typeof docs === "string"
+        ? docs.split("/").map((s) => Number(s.replace(/[^\d]/g, "")))
+        : [];
+    const pct = used && cap ? (used / cap) * 100 : 0;
+    return (
+      <div className="portal-sidebar__usage portal-sidebar__usage--free">
+        <div className="portal-sidebar__usage-line">
+          <span className="portal-sidebar__usage-label">Docs processed</span>
+          <span className="portal-sidebar__usage-value">{docs ?? "—"}</span>
+        </div>
+        <div
+          className="portal-sidebar__usage-track"
+          role="progressbar"
+          aria-valuenow={used ?? 0}
+          aria-valuemax={cap ?? 100}
+        >
+          <div
+            className="portal-sidebar__usage-fill"
+            style={{ width: `${pct}%` }}
+          />
+        </div>
+      </div>
+    );
+  }
+
+  const planLabel = tier === "pro" ? "Pay-as-you-go" : "Enterprise Plan";
+
+  return (
+    <div className="portal-sidebar__usage">
+      <div className="portal-sidebar__usage-line">
+        <span className="portal-sidebar__plan">
+          <span className="portal-sidebar__plan-dot" aria-hidden />
+          {planLabel}
+        </span>
+        <span className="portal-sidebar__usage-value">
+          {docs != null ? `${docs} docs` : "—"}
+        </span>
+      </div>
+    </div>
+  );
+}
+
+export function Sidebar() {
+  const { activeView, setActiveView } = useView();
+
+  function renderGroup(entries: NavEntry[]) {
+    return entries.map((entry) => (
+      <NavItem
+        key={entry.id}
+        id={entry.id}
+        label={entry.label}
+        icon={entry.icon}
+        isActive={activeView === entry.id}
+        onClick={(id) => setActiveView(id as ViewId)}
+      />
+    ));
+  }
+
+  return (
+    <aside className="portal-sidebar" aria-label="Primary navigation">
+      <div className="portal-sidebar__logo">
+        <StirlingMark />
+        <span className="portal-sidebar__wordmark">Stirling</span>
+        <button
+          type="button"
+          className="portal-sidebar__workspace"
+          aria-label="Switch workspace"
+        >
+          <ChevronDownIcon size={14} />
+        </button>
+      </div>
+
+      <nav className="portal-sidebar__nav">
+        <div className="portal-sidebar__group">
+          {renderGroup(GROUP_PRIMARY)}
+        </div>
+        <div className="portal-sidebar__divider" aria-hidden />
+        <div className="portal-sidebar__group">
+          {renderGroup(GROUP_OPERATIONAL)}
+        </div>
+        <div className="portal-sidebar__divider" aria-hidden />
+        <div className="portal-sidebar__group">
+          {renderGroup(GROUP_PLATFORM)}
+        </div>
+      </nav>
+
+      <div className="portal-sidebar__footer">
+        <NavItem
+          id="settings"
+          label="Settings"
+          icon={<SettingsIcon />}
+          isActive={activeView === "settings"}
+          onClick={(id) => setActiveView(id as ViewId)}
+        />
+        <UsageFooter />
+      </div>
+    </aside>
+  );
+}

frontend/portal/src/components/SingleOpRunner.css

@@ -0,0 +1,345 @@
+.portal-runner__layout {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
+  gap: 1rem;
+  min-height: 26rem;
+}
+
+@media (max-width: 50rem) {
+  .portal-runner__layout {
+    grid-template-columns: 1fr;
+  }
+}
+
+.portal-runner__left,
+.portal-runner__right {
+  display: flex;
+  flex-direction: column;
+  gap: 0.875rem;
+  min-width: 0;
+}
+
+/* Drop zone */
+.portal-runner__drop {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 0.625rem;
+  padding: 1.25rem;
+  border: 1.5px dashed var(--color-border-input);
+  border-radius: var(--radius-md);
+  background: var(--color-bg-subtle);
+  color: var(--color-text-3);
+  text-align: center;
+  transition:
+    border-color var(--motion-fast),
+    background var(--motion-fast);
+}
+
+.portal-runner__drop.is-armed,
+.portal-runner__drop:hover {
+  border-color: var(--color-blue);
+  background: var(--color-blue-light);
+  color: var(--color-blue);
+}
+
+.portal-runner__drop.has-file {
+  border-color: var(--color-green);
+  background: var(--color-green-light);
+  color: var(--color-text-2);
+}
+
+.portal-runner__drop-icon {
+  color: var(--color-text-4);
+}
+
+.portal-runner__drop.is-armed .portal-runner__drop-icon,
+.portal-runner__drop.has-file .portal-runner__drop-icon {
+  color: inherit;
+}
+
+.portal-runner__drop-text {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 0.125rem;
+  font-size: 0.8125rem;
+}
+
+.portal-runner__drop-text strong {
+  font-size: 0.875rem;
+  color: var(--color-text-1);
+  font-family: var(--font-mono);
+}
+
+.portal-runner__drop-text span {
+  font-size: 0.75rem;
+  color: var(--color-text-4);
+}
+
+.portal-runner__sample-btn {
+  font-size: 0.75rem;
+  font-weight: 500;
+  color: var(--color-blue);
+  padding: 0.25rem 0.5rem;
+  border-radius: var(--radius-sm);
+  transition: background var(--motion-fast);
+}
+
+.portal-runner__sample-btn:hover {
+  background: var(--color-bg-hover);
+}
+
+/* Op picker */
+.portal-runner__section-title {
+  font-size: 0.6875rem;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+  color: var(--color-section-label);
+  margin-bottom: 0.5rem;
+}
+
+.portal-runner__ops {
+  display: grid;
+  grid-template-columns: repeat(2, 1fr);
+  gap: 0.375rem;
+}
+
+.portal-runner__op {
+  position: relative;
+  display: flex;
+  flex-direction: column;
+  align-items: flex-start;
+  gap: 0.125rem;
+  padding: 0.5rem 0.625rem;
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  text-align: left;
+  transition:
+    border-color var(--motion-fast),
+    background var(--motion-fast);
+}
+
+.portal-runner__op:hover {
+  border-color: var(--color-border-hover);
+  background: var(--color-bg-hover);
+}
+
+.portal-runner__op.is-selected {
+  border-color: var(--color-blue);
+  background: var(--color-blue-light);
+}
+
+.portal-runner__op[data-accent="purple"].is-selected {
+  border-color: var(--color-purple);
+  background: var(--color-purple-light);
+}
+.portal-runner__op[data-accent="green"].is-selected {
+  border-color: var(--color-green);
+  background: var(--color-green-light);
+}
+.portal-runner__op[data-accent="amber"].is-selected {
+  border-color: var(--color-amber);
+  background: var(--color-amber-light);
+}
+.portal-runner__op[data-accent="red"].is-selected {
+  border-color: var(--color-red);
+  background: var(--color-red-light);
+}
+
+.portal-runner__op-label {
+  font-size: 0.8125rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+
+.portal-runner__op-endpoint {
+  font-family: var(--font-mono);
+  font-size: 0.6875rem;
+  color: var(--color-text-4);
+}
+
+.portal-runner__op-blurb {
+  font-size: 0.6875rem;
+  color: var(--color-text-3);
+  line-height: 1.35;
+}
+
+.portal-runner__op--skeleton {
+  display: flex;
+  flex-direction: column;
+  gap: 0.375rem;
+  cursor: default;
+}
+.portal-runner__op--skeleton:hover {
+  border-color: var(--color-border-light);
+  background: transparent;
+}
+
+/* Right column states */
+.portal-runner__right {
+  border: 1px solid var(--color-border-light);
+  border-radius: var(--radius-md);
+  background: var(--color-bg-subtle);
+  padding: 1.125rem;
+  overflow: hidden;
+  min-height: 22rem;
+}
+
+.portal-runner__hint {
+  color: var(--color-text-3);
+}
+
+.portal-runner__hint-eyebrow {
+  font-size: 0.6875rem;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+  color: var(--color-blue);
+  margin-bottom: 0.5rem;
+}
+
+.portal-runner__hint h3 {
+  margin: 0 0 0.5rem;
+  font-size: 1rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+
+.portal-runner__hint h3 code {
+  font-family: var(--font-mono);
+  font-size: 0.9375rem;
+  color: var(--color-blue);
+  background: var(--color-blue-light);
+  padding: 0 0.25rem;
+  border-radius: var(--radius-xs);
+}
+
+.portal-runner__hint p {
+  margin: 0;
+  font-size: 0.8125rem;
+  line-height: 1.5;
+}
+
+.portal-runner__hint p code {
+  font-family: var(--font-mono);
+  font-size: 0.75rem;
+  color: var(--color-text-2);
+  background: var(--color-bg-muted);
+  padding: 0 0.25rem;
+  border-radius: var(--radius-xs);
+}
+
+.portal-runner__hint kbd {
+  font-family: var(--font-mono);
+  font-size: 0.6875rem;
+  background: var(--color-bg-muted);
+  padding: 0.0625rem 0.3125rem;
+  border-radius: var(--radius-xs);
+  border: 1px solid var(--color-border);
+}
+
+/* Running state */
+.portal-runner__running {
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+  padding: 1rem;
+  background: var(--color-blue-light);
+  border: 1px solid var(--color-blue-border);
+  border-radius: var(--radius-md);
+  color: var(--color-blue);
+}
+
+.portal-runner__running-title {
+  font-size: 0.875rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+  margin-bottom: 0.25rem;
+}
+
+.portal-runner__running code {
+  font-family: var(--font-mono);
+  font-size: 0.75rem;
+}
+
+.portal-runner__spinner,
+.portal-runner__spinner-lg {
+  border-radius: 50%;
+  border: 2px solid currentColor;
+  border-right-color: transparent;
+  animation: spin 0.7s linear infinite;
+  flex-shrink: 0;
+}
+
+.portal-runner__spinner {
+  width: 0.875rem;
+  height: 0.875rem;
+}
+
+.portal-runner__spinner-lg {
+  width: 1.5rem;
+  height: 1.5rem;
+}
+
+/* Done state */
+.portal-runner__result {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+}
+
+.portal-runner__result-head {
+  display: flex;
+  align-items: center;
+  gap: 0.625rem;
+  padding: 0.5rem 0.75rem;
+  background: var(--code-bg-header);
+  border-bottom: 1px solid var(--code-border);
+  border-radius: var(--radius-md) var(--radius-md) 0 0;
+  color: var(--code-muted);
+  font-family: var(--font-mono);
+  font-size: 0.75rem;
+}
+
+.portal-runner__result-head code {
+  flex: 1;
+  font-family: inherit;
+  color: var(--code-keyword);
+}
+
+.portal-runner__result-meta {
+  font-size: 0.6875rem;
+  color: var(--code-dim);
+}
+
+.portal-runner__result-code {
+  margin: 0;
+  padding: 0.875rem 1rem;
+  background: var(--code-bg);
+  color: var(--code-text);
+  font-family: var(--font-mono);
+  font-size: 0.75rem;
+  line-height: 1.6;
+  border-radius: 0 0 var(--radius-md) var(--radius-md);
+  overflow: auto;
+  white-space: pre;
+  max-height: 22rem;
+}
+
+/* Footer */
+.portal-runner__footer-status {
+  margin-right: auto;
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+  font-size: 0.75rem;
+  color: var(--color-text-4);
+  font-family: var(--font-mono);
+}
+
+.portal-runner__footer-status code {
+  font-family: inherit;
+}

frontend/portal/src/components/SingleOpRunner.stories.tsx

@@ -0,0 +1,53 @@
+import type { Meta, StoryObj } from "@storybook/react-vite";
+import { http, HttpResponse, delay } from "msw";
+import { SingleOpRunner } from "@portal/components/SingleOpRunner";
+
+const meta: Meta<typeof SingleOpRunner> = {
+  title: "Portal/Home/SingleOpRunner",
+  component: SingleOpRunner,
+  parameters: { layout: "fullscreen" },
+  args: { open: true, onClose: () => console.log("close") },
+  decorators: [
+    (S) => (
+      <div style={{ minHeight: "100vh", background: "var(--color-bg)" }}>
+        <S />
+      </div>
+    ),
+  ],
+};
+export default meta;
+type Story = StoryObj<typeof SingleOpRunner>;
+
+export const Idle: Story = {};
+
+export const PreSelectedOp: Story = {
+  args: { initialOpId: "redact" },
+};
+
+export const RunFailsWithUnknownOp: Story = {
+  parameters: {
+    msw: {
+      handlers: [
+        http.post("/v1/ops/:opId/run", () =>
+          HttpResponse.json({ error: "Unknown op" }, { status: 404 }),
+        ),
+      ],
+    },
+  },
+};
+
+export const SlowOp: Story = {
+  parameters: {
+    msw: {
+      handlers: [
+        http.post("/v1/ops/:opId/run", async () => {
+          await delay(4000);
+          return HttpResponse.json({
+            result: { schema: "demo", note: "took its time" },
+            durationMs: 4000,
+          });
+        }),
+      ],
+    },
+  },
+};

frontend/portal/src/components/SingleOpRunner.tsx

@@ -0,0 +1,355 @@
+import { useCallback, useEffect, useMemo, useState } from "react";
+import {
+  Button,
+  EmptyState,
+  Modal,
+  Skeleton,
+  StatusBadge,
+} from "@shared/components";
+import { useView } from "@portal/contexts/ViewContext";
+import { useAsync, useSectionFlags } from "@portal/hooks/useAsync";
+import {
+  fetchFeaturedOps,
+  runSingleOp,
+  type FeaturedOp,
+  type OpResultMap,
+} from "@portal/api/ops";
+import "@portal/components/SingleOpRunner.css";
+
+type Phase = "idle" | "running" | "done" | "error";
+
+interface SingleOpRunnerProps {
+  open: boolean;
+  onClose: () => void;
+  /** Optional pre-selected op id (e.g. carousel deep-link). */
+  initialOpId?: string;
+}
+
+const SAMPLE_DOCS = [
+  "certificate-of-insurance.pdf",
+  "loss-run-2025.pdf",
+  "invoice-acme-corp-q1.pdf",
+  "prior-auth-cigna-12471.pdf",
+  "contract-acme-msa-v3.pdf",
+];
+
+interface RunResult {
+  result: OpResultMap;
+  durationMs: number;
+  opId: string;
+}
+
+export function SingleOpRunner({
+  open,
+  onClose,
+  initialOpId,
+}: SingleOpRunnerProps) {
+  const { setActiveView } = useView();
+  const opsState = useAsync<FeaturedOp[]>(() => fetchFeaturedOps(), []);
+  const { data: ops } = opsState;
+  const { isLoading: opsIsLoading, isEmpty: opsIsEmpty } =
+    useSectionFlags(opsState);
+
+  const [selectedOpId, setSelectedOpId] = useState<string | null>(
+    initialOpId ?? null,
+  );
+  const [phase, setPhase] = useState<Phase>("idle");
+  const [sample, setSample] = useState<string | null>(null);
+  const [dragOver, setDragOver] = useState(false);
+  const [runResult, setRunResult] = useState<RunResult | null>(null);
+  const [errorMsg, setErrorMsg] = useState<string | null>(null);
+
+  // Default selection once the catalogue loads.
+  useEffect(() => {
+    if (!selectedOpId && ops && ops.length > 0) {
+      setSelectedOpId(ops[0].id);
+    }
+  }, [ops, selectedOpId]);
+
+  const selectedOp = useMemo<FeaturedOp | null>(
+    () => ops?.find((o) => o.id === selectedOpId) ?? null,
+    [ops, selectedOpId],
+  );
+
+  useEffect(() => {
+    if (open) {
+      setSelectedOpId(initialOpId ?? ops?.[0]?.id ?? null);
+      setPhase("idle");
+      setSample(null);
+      setRunResult(null);
+      setErrorMsg(null);
+    }
+    // ops is intentionally not in deps — we don't want to reset state when
+    // the catalogue arrives while the modal is open.
+  }, [open, initialOpId]);
+
+  const pickSample = useCallback(() => {
+    if (!ops) return;
+    const idx = ops.findIndex((o) => o.id === selectedOpId);
+    const safeIdx = idx < 0 ? 0 : idx;
+    setSample(SAMPLE_DOCS[safeIdx % SAMPLE_DOCS.length]);
+  }, [ops, selectedOpId]);
+
+  async function run() {
+    if (!selectedOp) return;
+    let activeSample = sample;
+    if (!activeSample) {
+      pickSample();
+      // pickSample updates state; use the synchronously-derived value for the
+      // call so we don't race.
+      const idx = ops?.findIndex((o) => o.id === selectedOpId) ?? 0;
+      activeSample = SAMPLE_DOCS[idx % SAMPLE_DOCS.length];
+    }
+    setPhase("running");
+    setErrorMsg(null);
+    try {
+      const res = await runSingleOp(selectedOp.id, activeSample);
+      setRunResult({ ...res, opId: selectedOp.id });
+      setPhase("done");
+    } catch (err) {
+      setPhase("error");
+      setErrorMsg(err instanceof Error ? err.message : String(err));
+    }
+  }
+
+  function reset() {
+    setPhase("idle");
+    setRunResult(null);
+    setErrorMsg(null);
+  }
+
+  function buildPipelineWithOp() {
+    onClose();
+    setActiveView("pipelines");
+  }
+
+  function onDragOver(e: React.DragEvent) {
+    e.preventDefault();
+    setDragOver(true);
+  }
+  function onDragLeave() {
+    setDragOver(false);
+  }
+  function onDrop(e: React.DragEvent) {
+    e.preventDefault();
+    setDragOver(false);
+    const file = e.dataTransfer.files[0];
+    if (file) setSample(file.name);
+    else pickSample();
+  }
+
+  return (
+    <Modal
+      open={open}
+      onClose={onClose}
+      width="xl"
+      title="Try a PDF operation"
+      subtitle="Drop a sample, pick an op, see what Stirling returns."
+      footer={
+        <>
+          <div className="portal-runner__footer-status">
+            {phase === "running" && selectedOp && (
+              <>
+                <span className="portal-runner__spinner" aria-hidden />
+                <code>POST {selectedOp.endpoint}</code>
+              </>
+            )}
+            {phase === "done" && (
+              <StatusBadge tone="success" size="sm">
+                200 OK
+              </StatusBadge>
+            )}
+            {phase === "error" && (
+              <StatusBadge tone="danger" size="sm">
+                {errorMsg ?? "Failed"}
+              </StatusBadge>
+            )}
+          </div>
+          <Button variant="ghost" onClick={onClose}>
+            Close
+          </Button>
+          {phase === "done" ? (
+            <>
+              <Button variant="outline" onClick={reset}>
+                Run again
+              </Button>
+              <Button
+                variant="gradient"
+                onClick={buildPipelineWithOp}
+                trailingIcon={<span aria-hidden>→</span>}
+              >
+                Open the pipeline builder
+              </Button>
+            </>
+          ) : (
+            <Button
+              variant="gradient"
+              onClick={run}
+              disabled={phase === "running" || !selectedOp}
+              trailingIcon={<span aria-hidden>→</span>}
+            >
+              {phase === "running" ? "Running…" : "Run operation"}
+            </Button>
+          )}
+        </>
+      }
+    >
+      <div className="portal-runner__layout">
+        {/* Left column: file + op picker */}
+        <section className="portal-runner__left">
+          <div
+            className={
+              "portal-runner__drop" +
+              (dragOver ? " is-armed" : "") +
+              (sample ? " has-file" : "")
+            }
+            onDragOver={onDragOver}
+            onDragLeave={onDragLeave}
+            onDrop={onDrop}
+          >
+            <div className="portal-runner__drop-icon" aria-hidden>
+              <svg
+                viewBox="0 0 24 24"
+                width="32"
+                height="32"
+                fill="none"
+                stroke="currentColor"
+                strokeWidth="1.5"
+                strokeLinecap="round"
+                strokeLinejoin="round"
+              >
+                <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z" />
+                <polyline points="14 2 14 8 20 8" />
+              </svg>
+            </div>
+            <div className="portal-runner__drop-text">
+              {sample ? (
+                <>
+                  <strong>{sample}</strong>
+                  <span>Drop again or pick another sample to replace.</span>
+                </>
+              ) : (
+                <>
+                  <strong>Drop a PDF here</strong>
+                  <span>or use a sample document.</span>
+                </>
+              )}
+            </div>
+            <button
+              type="button"
+              className="portal-runner__sample-btn"
+              onClick={pickSample}
+            >
+              {sample ? "Pick another sample" : "Use a sample"}
+            </button>
+          </div>
+
+          <div>
+            <div className="portal-runner__section-title">Featured ops</div>
+            <div className="portal-runner__ops">
+              {opsIsLoading &&
+                Array.from({ length: 4 }).map((_, i) => (
+                  <div
+                    key={`op-skel-${i}`}
+                    className="portal-runner__op portal-runner__op--skeleton"
+                    aria-hidden
+                  >
+                    <Skeleton width="60%" />
+                    <Skeleton width="40%" height="0.625rem" />
+                    <Skeleton width="80%" height="0.625rem" />
+                  </div>
+                ))}
+              {opsIsEmpty && (
+                <EmptyState
+                  size="compact"
+                  title="No featured ops yet"
+                  description="Once operations are published, they'll show up here."
+                />
+              )}
+              {ops?.map((op) => (
+                <button
+                  key={op.id}
+                  type="button"
+                  className={
+                    "portal-runner__op" +
+                    (selectedOpId === op.id ? " is-selected" : "")
+                  }
+                  onClick={() => {
+                    setSelectedOpId(op.id);
+                    if (phase === "done") {
+                      setPhase("idle");
+                      setRunResult(null);
+                    }
+                  }}
+                  data-accent={op.accent}
+                >
+                  <span className="portal-runner__op-label">{op.label}</span>
+                  <span className="portal-runner__op-endpoint">
+                    {op.endpoint}
+                  </span>
+                  <span className="portal-runner__op-blurb">{op.blurb}</span>
+                </button>
+              ))}
+            </div>
+          </div>
+        </section>
+
+        {/* Right column: state-driven result panel */}
+        <section className="portal-runner__right">
+          {phase === "idle" && selectedOp && (
+            <div className="portal-runner__hint">
+              <div className="portal-runner__hint-eyebrow">Ready</div>
+              <h3>
+                Run <code>{selectedOp.label}</code> on{" "}
+                <code>{sample ?? "a sample"}</code>
+              </h3>
+              <p>
+                {selectedOp.blurb}. Press <kbd>Run operation</kbd> to invoke{" "}
+                <code>POST {selectedOp.endpoint}</code>.
+              </p>
+            </div>
+          )}
+          {phase === "running" && selectedOp && (
+            <div className="portal-runner__running">
+              <div className="portal-runner__spinner-lg" aria-hidden />
+              <div className="portal-runner__running-text">
+                <div className="portal-runner__running-title">
+                  Running {selectedOp.label}…
+                </div>
+                <code>POST {selectedOp.endpoint}</code>
+              </div>
+            </div>
+          )}
+          {phase === "done" && selectedOp && runResult && (
+            <div className="portal-runner__result">
+              <header className="portal-runner__result-head">
+                <StatusBadge tone="success" size="sm">
+                  Completed
+                </StatusBadge>
+                <code>POST {selectedOp.endpoint}</code>
+                <span className="portal-runner__result-meta">
+                  {runResult.durationMs} ms
+                </span>
+              </header>
+              <pre className="portal-runner__result-code">
+                {JSON.stringify(runResult.result, null, 2)}
+              </pre>
+            </div>
+          )}
+          {phase === "error" && (
+            <div className="portal-runner__hint">
+              <div
+                className="portal-runner__hint-eyebrow"
+                style={{ color: "var(--color-red)" }}
+              >
+                Failed
+              </div>
+              <h3>The operation didn&rsquo;t complete</h3>
+              <p>{errorMsg ?? "Unknown error"}</p>
+            </div>
+          )}
+        </section>
+      </div>
+    </Modal>
+  );
+}

frontend/portal/src/components/UsageAreaChart.css

@@ -0,0 +1,115 @@
+.portal-chart {
+  position: relative;
+  display: flex;
+  flex-direction: column;
+  gap: 0.75rem;
+  padding: 1.125rem 1.25rem;
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+}
+
+.portal-chart__head {
+  display: flex;
+  align-items: flex-end;
+  justify-content: space-between;
+  gap: 0.75rem;
+}
+
+.portal-chart__label {
+  font-size: 0.75rem;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+  color: var(--color-section-label);
+}
+
+.portal-chart__value {
+  margin-top: 0.125rem;
+  font-size: 1.5rem;
+  font-weight: 700;
+  color: var(--color-text-1);
+  font-variant-numeric: tabular-nums;
+}
+
+.portal-chart__delta {
+  font-size: 0.75rem;
+  font-weight: 500;
+  padding: 0.1875rem 0.5rem;
+  border-radius: var(--radius-pill);
+}
+
+.portal-chart__delta.is-up {
+  color: var(--color-green-dark);
+  background: var(--color-green-light);
+}
+
+.portal-chart__delta.is-down {
+  color: var(--color-red);
+  background: var(--color-red-light);
+}
+
+.portal-chart__svg {
+  width: 100%;
+  height: 15rem;
+  display: block;
+  overflow: visible;
+}
+
+.portal-chart__gridline {
+  stroke: var(--color-border-light);
+  stroke-width: 1;
+  stroke-dasharray: 3 3;
+}
+
+.portal-chart__axis-label {
+  font-family: var(--font-sans);
+  font-size: 10.5px;
+  fill: var(--color-text-5);
+}
+
+.portal-chart__line {
+  fill: none;
+  stroke: var(--color-blue);
+  stroke-width: 1.75;
+  stroke-linecap: round;
+  stroke-linejoin: round;
+}
+
+.portal-chart__scrub {
+  stroke: var(--color-text-5);
+  stroke-width: 1;
+  stroke-dasharray: 2 3;
+  opacity: 0.6;
+}
+
+.portal-chart__dot {
+  fill: var(--color-blue);
+  stroke: var(--color-surface);
+  stroke-width: 2;
+}
+
+.portal-chart__tooltip {
+  position: absolute;
+  transform: translateX(-50%);
+  top: 4rem;
+  padding: 0.4375rem 0.625rem;
+  background: var(--color-tooltip-bg);
+  color: var(--color-tooltip-text);
+  border-radius: var(--radius-sm);
+  font-size: 0.75rem;
+  white-space: nowrap;
+  pointer-events: none;
+  box-shadow: var(--shadow-md);
+  z-index: 2;
+}
+
+.portal-chart__tooltip-date {
+  font-size: 0.6875rem;
+  opacity: 0.7;
+}
+
+.portal-chart__tooltip-value {
+  font-weight: 600;
+  font-variant-numeric: tabular-nums;
+}

frontend/portal/src/components/UsageAreaChart.stories.tsx

@@ -0,0 +1,53 @@
+import type { Meta, StoryObj } from "@storybook/react-vite";
+import { UsageAreaChart } from "@portal/components/UsageAreaChart";
+import { buildUsageSeries } from "@portal/mocks/home";
+
+const meta: Meta<typeof UsageAreaChart> = {
+  title: "Portal/Home/UsageAreaChart",
+  component: UsageAreaChart,
+  parameters: { layout: "padded" },
+  decorators: [
+    (S) => (
+      <div style={{ maxWidth: "60rem" }}>
+        <S />
+      </div>
+    ),
+  ],
+};
+export default meta;
+type Story = StoryObj<typeof UsageAreaChart>;
+
+const series = buildUsageSeries();
+const total = series.reduce((sum, p) => sum + p.value, 0);
+
+export const Default: Story = {
+  args: { data: series, totalValue: total.toLocaleString(), deltaPct: 0.12 },
+};
+
+export const NegativeDelta: Story = {
+  args: { data: series, totalValue: total.toLocaleString(), deltaPct: -0.08 },
+};
+
+export const NoDelta: Story = {
+  args: { data: series },
+};
+
+export const Flat: Story = {
+  args: {
+    data: series.map((p) => ({ ...p, value: 1200 })),
+    totalValue: "36,000",
+  },
+};
+
+export const HighVolatility: Story = {
+  args: {
+    data: series.map((p, i) => ({
+      ...p,
+      value: Math.round(p.value * (1 + Math.sin(i) * 0.6)),
+    })),
+  },
+};
+
+export const Empty: Story = {
+  args: { data: [], totalValue: "—" },
+};

frontend/portal/src/components/UsageAreaChart.tsx

@@ -0,0 +1,278 @@
+import { useMemo, useRef, useState, type KeyboardEvent } from "react";
+import type { UsagePoint } from "@portal/api/home";
+import "@portal/components/UsageAreaChart.css";
+
+interface UsageAreaChartProps {
+  data: UsagePoint[];
+  /** Headline metric shown above the chart (e.g. total 30d, current value). */
+  totalLabel?: string;
+  totalValue?: string;
+  deltaPct?: number;
+}
+
+const PADDING = { top: 16, right: 20, bottom: 28, left: 32 } as const;
+const VIEW = { width: 800, height: 240 } as const;
+
+function formatTick(date: string): string {
+  return new Date(date).toLocaleDateString(undefined, {
+    month: "short",
+    day: "numeric",
+  });
+}
+
+function formatNumber(value: number): string {
+  if (value >= 1000) {
+    return `${(value / 1000).toFixed(value >= 10_000 ? 0 : 1)}k`;
+  }
+  return value.toLocaleString();
+}
+
+export function UsageAreaChart({
+  data,
+  totalLabel = "Docs processed · last 30 days",
+  totalValue,
+  deltaPct,
+}: UsageAreaChartProps) {
+  const [hoverIndex, setHoverIndex] = useState<number | null>(null);
+  const svgRef = useRef<SVGSVGElement | null>(null);
+
+  const { points, areaPath, linePath, yMax, yTicks, xTickIndices } =
+    useMemo(() => {
+      if (data.length === 0) {
+        return {
+          points: [] as Array<{ x: number; y: number; raw: UsagePoint }>,
+          areaPath: "",
+          linePath: "",
+          yMax: 0,
+          yTicks: [] as number[],
+          xTickIndices: [] as number[],
+        };
+      }
+      const max = Math.max(...data.map((d) => d.value));
+      // Round yMax up to a "nice" number for ticks. Floor at 500 so an
+      // all-zero series doesn't divide by zero (which would NaN every point).
+      const niceMax = Math.max(Math.ceil(max / 500) * 500, 500);
+      const yTicksCalc = [0, niceMax * 0.5, niceMax];
+
+      const innerW = VIEW.width - PADDING.left - PADDING.right;
+      const innerH = VIEW.height - PADDING.top - PADDING.bottom;
+      const xStep = innerW / Math.max(data.length - 1, 1);
+
+      const pts = data.map((raw, i) => ({
+        x: PADDING.left + i * xStep,
+        y: PADDING.top + innerH - (raw.value / niceMax) * innerH,
+        raw,
+      }));
+
+      const linePathStr = pts
+        .map(
+          (p, i) =>
+            `${i === 0 ? "M" : "L"} ${p.x.toFixed(2)} ${p.y.toFixed(2)}`,
+        )
+        .join(" ");
+      const baseY = PADDING.top + innerH;
+      const areaPathStr = `${linePathStr} L ${pts[pts.length - 1].x.toFixed(2)} ${baseY} L ${pts[0].x.toFixed(2)} ${baseY} Z`;
+
+      // X ticks: 5 evenly spread.
+      const xIdx: number[] = [];
+      const tickCount = 5;
+      for (let t = 0; t < tickCount; t++) {
+        xIdx.push(Math.round((t * (data.length - 1)) / (tickCount - 1)));
+      }
+
+      return {
+        points: pts,
+        areaPath: areaPathStr,
+        linePath: linePathStr,
+        yMax: niceMax,
+        yTicks: yTicksCalc,
+        xTickIndices: xIdx,
+      };
+    }, [data]);
+
+  function onMouseMove(e: React.MouseEvent<SVGSVGElement>) {
+    if (!svgRef.current || points.length === 0) return;
+    const rect = svgRef.current.getBoundingClientRect();
+    const xRatio = (e.clientX - rect.left) / rect.width;
+    const svgX = xRatio * VIEW.width;
+    // Find nearest point
+    let nearestIdx = 0;
+    let nearestDist = Infinity;
+    for (let i = 0; i < points.length; i++) {
+      const d = Math.abs(points[i].x - svgX);
+      if (d < nearestDist) {
+        nearestDist = d;
+        nearestIdx = i;
+      }
+    }
+    setHoverIndex(nearestIdx);
+  }
+
+  const hovered = hoverIndex !== null ? points[hoverIndex] : null;
+
+  function onKeyDown(e: KeyboardEvent<SVGSVGElement>) {
+    if (points.length === 0) return;
+    if (e.key === "ArrowRight") {
+      e.preventDefault();
+      setHoverIndex((idx) =>
+        idx === null ? 0 : Math.min(points.length - 1, idx + 1),
+      );
+    } else if (e.key === "ArrowLeft") {
+      e.preventDefault();
+      setHoverIndex((idx) =>
+        idx === null ? points.length - 1 : Math.max(0, idx - 1),
+      );
+    } else if (e.key === "Home") {
+      e.preventDefault();
+      setHoverIndex(0);
+    } else if (e.key === "End") {
+      e.preventDefault();
+      setHoverIndex(points.length - 1);
+    } else if (e.key === "Escape") {
+      setHoverIndex(null);
+    }
+  }
+
+  const displayTotal =
+    totalValue ?? data.reduce((sum, p) => sum + p.value, 0).toLocaleString();
+
+  return (
+    <div className="portal-chart">
+      <header className="portal-chart__head">
+        <div>
+          <div className="portal-chart__label">{totalLabel}</div>
+          <div className="portal-chart__value">{displayTotal}</div>
+        </div>
+        {deltaPct !== undefined && (
+          <div
+            className={
+              "portal-chart__delta " + (deltaPct >= 0 ? "is-up" : "is-down")
+            }
+          >
+            <span aria-hidden>{deltaPct >= 0 ? "↑" : "↓"}</span>
+            {Math.abs(Math.round(deltaPct * 100))}% vs prior 30d
+          </div>
+        )}
+      </header>
+
+      <svg
+        ref={svgRef}
+        viewBox={`0 0 ${VIEW.width} ${VIEW.height}`}
+        preserveAspectRatio="none"
+        role="img"
+        aria-label={totalLabel}
+        className="portal-chart__svg"
+        tabIndex={points.length > 0 ? 0 : -1}
+        onMouseMove={onMouseMove}
+        onMouseLeave={() => setHoverIndex(null)}
+        onKeyDown={onKeyDown}
+        onBlur={() => setHoverIndex(null)}
+      >
+        <defs>
+          <linearGradient id="chart-fill" x1="0" y1="0" x2="0" y2="1">
+            <stop
+              offset="0%"
+              stopColor="var(--color-blue)"
+              stopOpacity="0.32"
+            />
+            <stop offset="100%" stopColor="var(--color-blue)" stopOpacity="0" />
+          </linearGradient>
+        </defs>
+
+        {/* Y gridlines + labels */}
+        {yTicks.map((tick) => {
+          const innerH = VIEW.height - PADDING.top - PADDING.bottom;
+          const y = PADDING.top + innerH - (tick / yMax) * innerH;
+          return (
+            <g key={tick}>
+              <line
+                x1={PADDING.left}
+                x2={VIEW.width - PADDING.right}
+                y1={y}
+                y2={y}
+                className="portal-chart__gridline"
+              />
+              <text
+                x={PADDING.left - 6}
+                y={y + 4}
+                className="portal-chart__axis-label"
+                textAnchor="end"
+              >
+                {formatNumber(tick)}
+              </text>
+            </g>
+          );
+        })}
+
+        {/* Area + line */}
+        <path d={areaPath} fill="url(#chart-fill)" />
+        <path d={linePath} className="portal-chart__line" />
+
+        {/* X ticks */}
+        {xTickIndices.map((idx) => {
+          const p = points[idx];
+          if (!p) return null;
+          return (
+            <text
+              key={idx}
+              x={p.x}
+              y={VIEW.height - PADDING.bottom + 18}
+              className="portal-chart__axis-label"
+              textAnchor="middle"
+            >
+              {formatTick(p.raw.date)}
+            </text>
+          );
+        })}
+
+        {/* Hover scrub + dot + tooltip */}
+        {hovered && (
+          <>
+            <line
+              x1={hovered.x}
+              x2={hovered.x}
+              y1={PADDING.top}
+              y2={VIEW.height - PADDING.bottom}
+              className="portal-chart__scrub"
+            />
+            <circle
+              cx={hovered.x}
+              cy={hovered.y}
+              r={4}
+              className="portal-chart__dot"
+            />
+          </>
+        )}
+      </svg>
+
+      {hovered && (
+        <div
+          className="portal-chart__tooltip"
+          style={{
+            left: `${(hovered.x / VIEW.width) * 100}%`,
+          }}
+        >
+          <div className="portal-chart__tooltip-date">
+            {new Date(hovered.raw.date).toLocaleDateString(undefined, {
+              weekday: "short",
+              month: "short",
+              day: "numeric",
+            })}
+          </div>
+          <div className="portal-chart__tooltip-value">
+            {hovered.raw.value.toLocaleString()} docs
+          </div>
+        </div>
+      )}
+      <div className="sr-only" aria-live="polite" aria-atomic="true">
+        {hovered
+          ? `${new Date(hovered.raw.date).toLocaleDateString(undefined, {
+              weekday: "short",
+              month: "short",
+              day: "numeric",
+            })}: ${hovered.raw.value.toLocaleString()} docs`
+          : ""}
+      </div>
+    </div>
+  );
+}

frontend/portal/src/components/WelcomeCarousel.css

@@ -0,0 +1,234 @@
+.portal-carousel {
+  position: relative;
+  overflow: hidden;
+  padding: 2rem;
+  border-radius: var(--radius-xl);
+  background: var(--grad-banner);
+  border: 1px solid var(--color-border);
+  isolation: isolate;
+}
+
+.portal-carousel__inner {
+  position: relative;
+  z-index: 1;
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) minmax(0, 20rem);
+  gap: 2rem;
+  align-items: center;
+  animation: fadeInUp var(--motion-enter) both;
+}
+
+@media (max-width: 50rem) {
+  .portal-carousel__inner {
+    grid-template-columns: 1fr;
+  }
+}
+
+.portal-carousel__text {
+  min-width: 0;
+}
+
+.portal-carousel__eyebrow {
+  font-size: 0.75rem;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+  color: var(--color-blue);
+  margin-bottom: 0.5rem;
+}
+
+.portal-carousel__title {
+  margin: 0 0 0.75rem;
+  font-size: 1.75rem;
+  font-weight: 700;
+  line-height: 1.15;
+  color: var(--color-text-1);
+}
+
+.portal-carousel__sub {
+  margin: 0 0 1.25rem;
+  font-size: 0.9375rem;
+  line-height: 1.55;
+  color: var(--color-text-3);
+  max-width: 36rem;
+}
+
+.portal-carousel__cta {
+  display: flex;
+  gap: 0.5rem;
+  flex-wrap: wrap;
+}
+
+/* Ornament container */
+.portal-carousel__ornament {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+/* Doc card ornament (slide 0) */
+.portal-carousel__doc {
+  width: 100%;
+  padding: 1rem;
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  box-shadow: var(--shadow-md);
+}
+.portal-carousel__doc-title {
+  margin-top: 0.5rem;
+  font-size: 0.9375rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+.portal-carousel__doc-sub {
+  margin-top: 0.125rem;
+  font-size: 0.75rem;
+  color: var(--color-text-4);
+}
+.portal-carousel__doc-meta {
+  margin-top: 0.75rem;
+  font-size: 0.75rem;
+  color: var(--color-text-4);
+  display: flex;
+  gap: 0.375rem;
+  flex-wrap: wrap;
+}
+
+/* Code ornament (slide 1) */
+.portal-carousel__code {
+  width: 100%;
+  margin: 0;
+  padding: 0.875rem 1rem;
+  background: var(--code-bg);
+  color: var(--code-text);
+  border: 1px solid var(--code-border);
+  border-radius: var(--radius-md);
+  font-family: var(--font-mono);
+  font-size: 0.75rem;
+  line-height: 1.65;
+  white-space: pre-wrap;
+  word-break: break-word;
+  box-shadow: var(--shadow-lg);
+}
+.portal-carousel__code-method {
+  color: var(--code-fn);
+  font-weight: 600;
+}
+.portal-carousel__code-path {
+  color: var(--code-keyword);
+}
+.portal-carousel__code-key {
+  color: var(--code-property);
+}
+.portal-carousel__code-string {
+  color: var(--code-string);
+}
+
+/* Eval ornament (slide 2) */
+.portal-carousel__eval {
+  width: 100%;
+  padding: 1rem;
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  box-shadow: var(--shadow-md);
+}
+.portal-carousel__eval-head {
+  display: flex;
+  align-items: baseline;
+  justify-content: space-between;
+}
+.portal-carousel__eval-title {
+  font-size: 0.875rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+.portal-carousel__eval-score {
+  font-size: 1.125rem;
+  font-weight: 700;
+  color: var(--color-green);
+}
+.portal-carousel__eval-sub {
+  font-size: 0.75rem;
+  color: var(--color-text-4);
+  margin-top: 0.125rem;
+}
+.portal-carousel__eval-bar {
+  margin-top: 0.75rem;
+  height: 0.375rem;
+  background: var(--color-bg-muted);
+  border-radius: var(--radius-pill);
+  overflow: hidden;
+}
+.portal-carousel__eval-fill {
+  height: 100%;
+  background: var(--grad-green-btn);
+}
+.portal-carousel__eval-meta {
+  margin-top: 0.625rem;
+  display: flex;
+  justify-content: space-between;
+  font-size: 0.6875rem;
+  color: var(--color-text-4);
+}
+
+/* Decoration blobs */
+.portal-carousel__decor {
+  position: absolute;
+  inset: 0;
+  z-index: 0;
+  pointer-events: none;
+}
+.portal-carousel__blob {
+  position: absolute;
+  border-radius: 50%;
+  filter: blur(2.5rem);
+}
+.portal-carousel__blob--1 {
+  top: -3rem;
+  right: -2rem;
+  width: 16rem;
+  height: 16rem;
+  background: radial-gradient(circle, var(--color-purple), transparent 70%);
+  opacity: 0.4;
+}
+.portal-carousel__blob--2 {
+  bottom: -4rem;
+  right: 8rem;
+  width: 12rem;
+  height: 12rem;
+  background: radial-gradient(circle, var(--color-blue), transparent 70%);
+  opacity: 0.3;
+}
+
+/* Pagination dots */
+.portal-carousel__dots {
+  position: absolute;
+  bottom: 0.875rem;
+  left: 50%;
+  transform: translateX(-50%);
+  display: flex;
+  gap: 0.375rem;
+  z-index: 2;
+}
+.portal-carousel__dot {
+  width: 0.4375rem;
+  height: 0.4375rem;
+  border-radius: 50%;
+  background: var(--color-text-5);
+  opacity: 0.4;
+  transition:
+    opacity var(--motion-fast),
+    background var(--motion-fast),
+    width var(--motion-fast);
+}
+.portal-carousel__dot:hover {
+  opacity: 0.7;
+}
+.portal-carousel__dot.is-active {
+  width: 1rem;
+  border-radius: var(--radius-pill);
+  background: var(--color-blue);
+  opacity: 1;
+}

frontend/portal/src/components/WelcomeCarousel.stories.tsx

@@ -0,0 +1,20 @@
+import type { Meta, StoryObj } from "@storybook/react-vite";
+import { WelcomeCarousel } from "@portal/components/WelcomeCarousel";
+
+const meta: Meta<typeof WelcomeCarousel> = {
+  title: "Portal/Home/WelcomeCarousel",
+  component: WelcomeCarousel,
+  args: { onTryOp: () => console.log("try op") },
+  parameters: { layout: "padded" },
+  decorators: [
+    (S) => (
+      <div style={{ maxWidth: "64rem" }}>
+        <S />
+      </div>
+    ),
+  ],
+};
+export default meta;
+type Story = StoryObj<typeof WelcomeCarousel>;
+
+export const AutoRotating: Story = {};

frontend/portal/src/components/WelcomeCarousel.tsx

@@ -0,0 +1,215 @@
+import { useEffect, useState, type ReactNode } from "react";
+import { Button, StatusBadge } from "@shared/components";
+import { useView, type ViewId } from "@portal/contexts/ViewContext";
+import "@portal/components/WelcomeCarousel.css";
+
+type SlideAction =
+  | { label: string; target: ViewId }
+  | { label: string; action: "try-op" };
+
+interface Slide {
+  id: string;
+  eyebrow: string;
+  title: string;
+  sub: string;
+  durationMs: number;
+  primary: SlideAction;
+  secondary: SlideAction;
+  ornament: ReactNode;
+}
+
+function EditorOrnament() {
+  return (
+    <div className="portal-carousel__doc">
+      <StatusBadge tone="danger" size="sm" pulse>
+        Critical
+      </StatusBadge>
+      <div className="portal-carousel__doc-title">
+        Vulnerability Assessment Report
+      </div>
+      <div className="portal-carousel__doc-sub">CVE-2026-1847 · 12 pages</div>
+      <div className="portal-carousel__doc-meta">
+        <span>signed</span>
+        <span>·</span>
+        <span>OCR-clean</span>
+        <span>·</span>
+        <span>schema match 0.97</span>
+      </div>
+    </div>
+  );
+}
+
+function PlatformOrnament() {
+  return (
+    <pre className="portal-carousel__code">
+      <span className="portal-carousel__code-method">POST</span>{" "}
+      <span className="portal-carousel__code-path">/v1/secure</span>
+      {"\n"}
+      <span className="portal-carousel__code-key">Authorization</span>:{" "}
+      <span className="portal-carousel__code-string">Bearer sk_live_a3f8…</span>
+      {"\n"}
+      <span className="portal-carousel__code-key">file</span>:{" "}
+      <span className="portal-carousel__code-string">
+        federal_CUI_contract.pdf
+      </span>
+      {"\n"}
+      <span className="portal-carousel__code-key">pipeline</span>:{" "}
+      <span className="portal-carousel__code-string">cui-redact-v2</span>
+    </pre>
+  );
+}
+
+function AgentOrnament() {
+  return (
+    <div className="portal-carousel__eval">
+      <div className="portal-carousel__eval-head">
+        <span className="portal-carousel__eval-title">KYC Processor</span>
+        <span className="portal-carousel__eval-score">94%</span>
+      </div>
+      <div className="portal-carousel__eval-sub">
+        Eval pass rate · 28 test cases
+      </div>
+      <div className="portal-carousel__eval-bar">
+        <div
+          className="portal-carousel__eval-fill"
+          style={{ width: "94%" }}
+          aria-hidden
+        />
+      </div>
+      <div className="portal-carousel__eval-meta">
+        <span>26 passed</span>
+        <span>2 review</span>
+        <span>MCP · Claude</span>
+      </div>
+    </div>
+  );
+}
+
+const SLIDES: Slide[] = [
+  {
+    id: "editor",
+    eyebrow: "PDF Editor",
+    title: "The #1 PDF Editor on GitHub",
+    sub: "Annotate, sign, redact, and review locally or in the cloud. Brought to the platform as the credibility anchor of the Stirling control plane.",
+    durationMs: 12000,
+    primary: { label: "Install PDF Editor", target: "editor" },
+    secondary: { label: "Connect an instance", target: "editor" },
+    ornament: <EditorOrnament />,
+  },
+  {
+    id: "platform",
+    eyebrow: "Platform",
+    title: "PDF Infrastructure for Developers",
+    sub: "Ingest from agents, APIs and connectors. Run composable pipelines with evals and golden sets. Land in a vault with zero-standing-access controls.",
+    durationMs: 8000,
+    primary: { label: "Try a PDF operation", action: "try-op" },
+    secondary: { label: "Get an API key", target: "infrastructure" },
+    ornament: <PlatformOrnament />,
+  },
+  {
+    id: "agents",
+    eyebrow: "AI Agents",
+    title: "PDF Processor for AI Agents",
+    sub: "Wire your agent via MCP, REST or tool definitions. Deterministic operations and guardrails — test with scenarios and evals before you ship.",
+    durationMs: 8000,
+    primary: { label: "Try PDF Processor", target: "sources" },
+    secondary: { label: "View MCP docs", target: "docs" },
+    ornament: <AgentOrnament />,
+  },
+];
+
+interface WelcomeCarouselProps {
+  /** Called when a slide CTA wants to invoke the single-op runner. */
+  onTryOp: () => void;
+}
+
+export function WelcomeCarousel({ onTryOp }: WelcomeCarouselProps) {
+  const [index, setIndex] = useState(0);
+  const [paused, setPaused] = useState(false);
+  const { setActiveView } = useView();
+
+  function runAction(act: SlideAction) {
+    if ("action" in act && act.action === "try-op") {
+      onTryOp();
+    } else if ("target" in act) {
+      setActiveView(act.target);
+    }
+  }
+
+  useEffect(() => {
+    if (paused) return;
+    const duration = SLIDES[index].durationMs;
+    const t = window.setTimeout(() => {
+      setIndex((i) => (i + 1) % SLIDES.length);
+    }, duration);
+    return () => window.clearTimeout(t);
+  }, [index, paused]);
+
+  const slide = SLIDES[index];
+
+  return (
+    <section
+      className="portal-carousel"
+      onMouseEnter={() => setPaused(true)}
+      onMouseLeave={() => setPaused(false)}
+      onFocus={() => setPaused(true)}
+      onBlur={(e) => {
+        // onBlur bubbles from children; only unpause when focus actually
+        // leaves the carousel, not when tabbing between the dot buttons.
+        if (!e.currentTarget.contains(e.relatedTarget as Node | null)) {
+          setPaused(false);
+        }
+      }}
+      aria-label="Stirling product highlights"
+      aria-roledescription="carousel"
+    >
+      <div className="portal-carousel__inner" key={slide.id}>
+        <div className="portal-carousel__text">
+          <div className="portal-carousel__eyebrow">{slide.eyebrow}</div>
+          <h1 className="portal-carousel__title">{slide.title}</h1>
+          <p className="portal-carousel__sub">{slide.sub}</p>
+          <div className="portal-carousel__cta">
+            <Button
+              variant="gradient"
+              onClick={() => runAction(slide.primary)}
+              trailingIcon={<span aria-hidden>→</span>}
+            >
+              {slide.primary.label}
+            </Button>
+            <Button
+              variant="outline"
+              onClick={() => runAction(slide.secondary)}
+            >
+              {slide.secondary.label}
+            </Button>
+          </div>
+        </div>
+        <div className="portal-carousel__ornament">{slide.ornament}</div>
+      </div>
+
+      <div className="portal-carousel__decor" aria-hidden>
+        <div className="portal-carousel__blob portal-carousel__blob--1" />
+        <div className="portal-carousel__blob portal-carousel__blob--2" />
+      </div>
+
+      <div
+        className="portal-carousel__dots"
+        role="group"
+        aria-label="Carousel pagination"
+      >
+        {SLIDES.map((s, i) => (
+          <button
+            key={s.id}
+            type="button"
+            aria-current={i === index ? "true" : undefined}
+            aria-label={`Slide ${i + 1}: ${s.title}`}
+            className={
+              "portal-carousel__dot" + (i === index ? " is-active" : "")
+            }
+            onClick={() => setIndex(i)}
+          />
+        ))}
+      </div>
+    </section>
+  );
+}

frontend/portal/src/components/icons.tsx

@@ -0,0 +1,202 @@
+import type { ReactNode } from "react";
+
+interface IconProps {
+  size?: number;
+  className?: string;
+}
+
+function Svg({
+  size = 18,
+  className,
+  children,
+}: IconProps & { children: ReactNode }) {
+  return (
+    <svg
+      xmlns="http://www.w3.org/2000/svg"
+      width={size}
+      height={size}
+      viewBox="0 0 24 24"
+      fill="none"
+      stroke="currentColor"
+      strokeWidth={1.75}
+      strokeLinecap="round"
+      strokeLinejoin="round"
+      className={className}
+    >
+      {children}
+    </svg>
+  );
+}
+
+export function HomeIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <path d="M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z" />
+      <polyline points="9 22 9 12 15 12 15 22" />
+    </Svg>
+  );
+}
+
+export function EditorIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z" />
+      <polyline points="14 2 14 8 20 8" />
+      <path d="m10 13-2 2 2 2" />
+      <path d="m14 17 2-2-2-2" />
+    </Svg>
+  );
+}
+
+export function SourcesIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <path d="M9 2v6" />
+      <path d="M15 2v6" />
+      <path d="M6 8h12v3a6 6 0 0 1-12 0z" />
+      <path d="M12 14v8" />
+    </Svg>
+  );
+}
+
+export function PipelinesIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <rect x="3" y="3" width="6" height="6" rx="1" />
+      <rect x="15" y="3" width="6" height="6" rx="1" />
+      <rect x="9" y="15" width="6" height="6" rx="1" />
+      <path d="M6 9v3a2 2 0 0 0 2 2h8a2 2 0 0 0 2-2V9" />
+      <path d="M12 14v1" />
+    </Svg>
+  );
+}
+
+export function DocumentsIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z" />
+      <polyline points="14 2 14 8 20 8" />
+      <line x1="8" y1="13" x2="16" y2="13" />
+      <line x1="8" y1="17" x2="16" y2="17" />
+      <line x1="8" y1="9" x2="10" y2="9" />
+    </Svg>
+  );
+}
+
+export function InfrastructureIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <rect x="3" y="4" width="18" height="6" rx="1" />
+      <rect x="3" y="14" width="18" height="6" rx="1" />
+      <line x1="7" y1="7" x2="7.01" y2="7" />
+      <line x1="7" y1="17" x2="7.01" y2="17" />
+    </Svg>
+  );
+}
+
+export function UsageIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <line x1="6" y1="20" x2="6" y2="10" />
+      <line x1="12" y1="20" x2="12" y2="4" />
+      <line x1="18" y1="20" x2="18" y2="14" />
+      <line x1="3" y1="20" x2="21" y2="20" />
+    </Svg>
+  );
+}
+
+export function DocsIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <path d="M2 4.5A2.5 2.5 0 0 1 4.5 2H20v17H4.5A2.5 2.5 0 0 0 2 21.5z" />
+      <path d="M2 19.5A2.5 2.5 0 0 1 4.5 17H20" />
+    </Svg>
+  );
+}
+
+export function SettingsIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <circle cx="12" cy="12" r="3" />
+      <path d="M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1-2.83 2.83l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-4 0v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83-2.83l.06-.06a1.65 1.65 0 0 0 .33-1.82 1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1 0-4h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 2.83-2.83l.06.06a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 4 0v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 2.83l-.06.06a1.65 1.65 0 0 0-.33 1.82V9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 0 4h-.09a1.65 1.65 0 0 0-1.51 1z" />
+    </Svg>
+  );
+}
+
+export function SearchIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <circle cx="11" cy="11" r="7" />
+      <line x1="21" y1="21" x2="16.65" y2="16.65" />
+    </Svg>
+  );
+}
+
+export function SunIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <circle cx="12" cy="12" r="4" />
+      <line x1="12" y1="2" x2="12" y2="4" />
+      <line x1="12" y1="20" x2="12" y2="22" />
+      <line x1="4.93" y1="4.93" x2="6.34" y2="6.34" />
+      <line x1="17.66" y1="17.66" x2="19.07" y2="19.07" />
+      <line x1="2" y1="12" x2="4" y2="12" />
+      <line x1="20" y1="12" x2="22" y2="12" />
+      <line x1="4.93" y1="19.07" x2="6.34" y2="17.66" />
+      <line x1="17.66" y1="6.34" x2="19.07" y2="4.93" />
+    </Svg>
+  );
+}
+
+export function MoonIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z" />
+    </Svg>
+  );
+}
+
+export function BellIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <path d="M6 8a6 6 0 0 1 12 0c0 7 3 9 3 9H3s3-2 3-9" />
+      <path d="M13.73 21a2 2 0 0 1-3.46 0" />
+    </Svg>
+  );
+}
+
+export function ChevronDownIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <polyline points="6 9 12 15 18 9" />
+    </Svg>
+  );
+}
+
+export function SparklesIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <path d="M12 3l1.9 5.1L19 10l-5.1 1.9L12 17l-1.9-5.1L5 10l5.1-1.9z" />
+      <path d="M19 4v3" />
+      <path d="M17.5 5.5h3" />
+    </Svg>
+  );
+}
+
+export function CloseIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <line x1="18" y1="6" x2="6" y2="18" />
+      <line x1="6" y1="6" x2="18" y2="18" />
+    </Svg>
+  );
+}
+
+export function SendIcon(props: IconProps) {
+  return (
+    <Svg {...props}>
+      <line x1="22" y1="2" x2="11" y2="13" />
+      <polygon points="22 2 15 22 11 13 2 9 22 2" />
+    </Svg>
+  );
+}

frontend/portal/src/contexts/ThemeContext.tsx

@@ -0,0 +1,57 @@
+import {
+  createContext,
+  useContext,
+  useEffect,
+  useMemo,
+  useState,
+  type ReactNode,
+} from "react";
+
+export type Theme = "light" | "dark";
+
+interface ThemeContextValue {
+  theme: Theme;
+  setTheme: (theme: Theme) => void;
+  toggle: () => void;
+}
+
+const ThemeContext = createContext<ThemeContextValue | null>(null);
+
+const STORAGE_KEY = "stirling.portal.theme";
+
+function readInitialTheme(): Theme {
+  if (typeof window === "undefined") return "light";
+  const stored = window.localStorage.getItem(STORAGE_KEY);
+  if (stored === "light" || stored === "dark") return stored;
+  return window.matchMedia("(prefers-color-scheme: dark)").matches
+    ? "dark"
+    : "light";
+}
+
+export function ThemeProvider({ children }: { children: ReactNode }) {
+  const [theme, setTheme] = useState<Theme>(readInitialTheme);
+
+  useEffect(() => {
+    document.documentElement.setAttribute("data-theme", theme);
+    window.localStorage.setItem(STORAGE_KEY, theme);
+  }, [theme]);
+
+  const value = useMemo<ThemeContextValue>(
+    () => ({
+      theme,
+      setTheme,
+      toggle: () => setTheme((t) => (t === "light" ? "dark" : "light")),
+    }),
+    [theme],
+  );
+
+  return (
+    <ThemeContext.Provider value={value}>{children}</ThemeContext.Provider>
+  );
+}
+
+export function useTheme(): ThemeContextValue {
+  const v = useContext(ThemeContext);
+  if (!v) throw new Error("useTheme must be used inside <ThemeProvider>");
+  return v;
+}

frontend/portal/src/contexts/TierContext.tsx

@@ -0,0 +1,45 @@
+import {
+  createContext,
+  useContext,
+  useMemo,
+  useState,
+  type ReactNode,
+} from "react";
+
+export type Tier = "free" | "pro" | "enterprise";
+
+export interface TierInfo {
+  label: string;
+  dotColor: string;
+}
+
+export const TIER_INFO: Record<Tier, TierInfo> = {
+  free: { label: "Free Plan", dotColor: "var(--color-text-4)" },
+  pro: { label: "Pay-as-you-go", dotColor: "var(--color-blue)" },
+  enterprise: { label: "Enterprise Plan", dotColor: "var(--color-purple)" },
+};
+
+interface TierContextValue {
+  tier: Tier;
+  setTier: (tier: Tier) => void;
+}
+
+const TierContext = createContext<TierContextValue | null>(null);
+
+export function TierProvider({
+  children,
+  initialTier = "pro",
+}: {
+  children: ReactNode;
+  initialTier?: Tier;
+}) {
+  const [tier, setTier] = useState<Tier>(initialTier);
+  const value = useMemo<TierContextValue>(() => ({ tier, setTier }), [tier]);
+  return <TierContext.Provider value={value}>{children}</TierContext.Provider>;
+}
+
+export function useTier(): TierContextValue {
+  const v = useContext(TierContext);
+  if (!v) throw new Error("useTier must be used inside <TierProvider>");
+  return v;
+}

frontend/portal/src/contexts/UIContext.tsx

@@ -0,0 +1,49 @@
+import {
+  createContext,
+  useContext,
+  useMemo,
+  useState,
+  type ReactNode,
+} from "react";
+
+interface UIContextValue {
+  searchOpen: boolean;
+  openSearch: () => void;
+  closeSearch: () => void;
+  toggleSearch: () => void;
+
+  assistantOpen: boolean;
+  openAssistant: () => void;
+  closeAssistant: () => void;
+  toggleAssistant: () => void;
+}
+
+const UIContext = createContext<UIContextValue | null>(null);
+
+export function UIProvider({ children }: { children: ReactNode }) {
+  const [searchOpen, setSearchOpen] = useState(false);
+  const [assistantOpen, setAssistantOpen] = useState(false);
+
+  const value = useMemo<UIContextValue>(
+    () => ({
+      searchOpen,
+      openSearch: () => setSearchOpen(true),
+      closeSearch: () => setSearchOpen(false),
+      toggleSearch: () => setSearchOpen((o) => !o),
+
+      assistantOpen,
+      openAssistant: () => setAssistantOpen(true),
+      closeAssistant: () => setAssistantOpen(false),
+      toggleAssistant: () => setAssistantOpen((o) => !o),
+    }),
+    [searchOpen, assistantOpen],
+  );
+
+  return <UIContext.Provider value={value}>{children}</UIContext.Provider>;
+}
+
+export function useUI(): UIContextValue {
+  const v = useContext(UIContext);
+  if (!v) throw new Error("useUI must be used inside <UIProvider>");
+  return v;
+}

frontend/portal/src/contexts/ViewContext.tsx

@@ -0,0 +1,73 @@
+import { useCallback, useMemo } from "react";
+import { useLocation, useNavigate } from "react-router-dom";
+
+export type ViewId =
+  | "home"
+  | "editor"
+  | "sources"
+  | "pipelines"
+  | "documents"
+  | "infrastructure"
+  | "usage"
+  | "docs"
+  | "settings";
+
+export const VIEW_LABELS: Record<ViewId, string> = {
+  home: "Home",
+  editor: "Editor",
+  sources: "Sources",
+  pipelines: "Pipelines",
+  documents: "Documents",
+  infrastructure: "Infrastructure",
+  usage: "Usage & Billing",
+  docs: "Developer Docs",
+  settings: "Settings",
+};
+
+export const VIEW_PATHS: Record<ViewId, string> = {
+  home: "/",
+  editor: "/editor",
+  sources: "/sources",
+  pipelines: "/pipelines",
+  documents: "/documents",
+  infrastructure: "/infrastructure",
+  usage: "/usage",
+  docs: "/docs",
+  settings: "/settings",
+};
+
+const PATH_TO_VIEW: Record<string, ViewId> = Object.fromEntries(
+  (Object.entries(VIEW_PATHS) as Array<[ViewId, string]>).map(
+    ([view, path]) => [path, view],
+  ),
+);
+
+function deriveActiveView(pathname: string): ViewId {
+  // Exact match first; otherwise treat the first segment as the view.
+  if (PATH_TO_VIEW[pathname]) return PATH_TO_VIEW[pathname];
+  const firstSegment = "/" + pathname.split("/").filter(Boolean)[0];
+  return PATH_TO_VIEW[firstSegment] ?? "home";
+}
+
+interface ViewContextValue {
+  activeView: ViewId;
+  setActiveView: (view: ViewId) => void;
+}
+
+/**
+ * Backwards-compatible facade over react-router. Components keep using
+ * useView()/setActiveView the way they did before; URLs are now real.
+ *
+ * No <ViewProvider> wrapper exists any more — the router is the provider.
+ * App.tsx wraps its children in <BrowserRouter>.
+ */
+export function useView(): ViewContextValue {
+  const { pathname } = useLocation();
+  const navigate = useNavigate();
+  const activeView = useMemo(() => deriveActiveView(pathname), [pathname]);
+  const setActiveView = useCallback(
+    (view: ViewId) => navigate(VIEW_PATHS[view]),
+    [navigate],
+  );
+  return { activeView, setActiveView };
+}

frontend/portal/src/hooks/useAsync.ts

@@ -0,0 +1,97 @@
+import { useEffect, useMemo, useState } from "react";
+
+export interface AsyncState<T> {
+  data: T | null;
+  loading: boolean;
+  error: Error | null;
+}
+
+/**
+ * Derived render flags for a panel backed by {@link useAsync}.
+ *
+ * Every async-driven section in the portal renders the same three-state shape:
+ *
+ *   - `isLoading` — first load, no data yet → render skeletons
+ *   - `isEmpty` — fetch failed OR data is genuinely empty → render <EmptyState>
+ *   - ready (neither flag set) — data is present → render the real UI
+ *
+ * Error and empty collapse into one branch on purpose: when there's no
+ * backend yet, fetch failures should surface as an empty page rather than
+ * an alarming error banner. The section header always renders regardless of
+ * which branch is active.
+ *
+ * The `ready` state is intentionally NOT exposed as a flag — callers should
+ * gate the ready branch on the actual data (`{events && events.length > 0
+ * && …}`) so TypeScript can narrow `events` from `T[] | null` to `T[]`.
+ */
+export interface SectionFlags {
+  isLoading: boolean;
+  isEmpty: boolean;
+}
+
+export function deriveSectionFlags<T>(state: AsyncState<T>): SectionFlags {
+  const { data, loading, error } = state;
+  const dataIsEmpty =
+    data === null || (Array.isArray(data) && data.length === 0);
+  return {
+    isLoading: loading && data === null,
+    isEmpty: !loading && (error !== null || dataIsEmpty),
+  };
+}
+
+/** Memoised variant for use inside components. */
+export function useSectionFlags<T>(state: AsyncState<T>): SectionFlags {
+  return useMemo(() => deriveSectionFlags(state), [state]);
+}
+
+/**
+ * Lightweight loading-state hook for async functions. Cancels the in-flight
+ * effect on unmount and on dependency change, so race conditions don't
+ * resolve into stale state.
+ *
+ * Intentionally minimal — when we want caching, retries, and revalidation
+ * we'll move this to TanStack Query or similar. For mocked data with sub-
+ * second latency, this is enough.
+ *
+ * @example
+ *   const { data, loading } = useAsync(() => fetchDeployedPipelines(), []);
+ *   if (loading) return <Spinner />;
+ *   if (!data) return null;
+ */
+export function useAsync<T>(
+  fn: (signal: AbortSignal) => Promise<T>,
+  deps: ReadonlyArray<unknown>,
+): AsyncState<T> {
+  const [state, setState] = useState<AsyncState<T>>({
+    data: null,
+    loading: true,
+    error: null,
+  });
+
+  useEffect(() => {
+    const controller = new AbortController();
+    let cancelled = false;
+
+    setState((prev) => ({ ...prev, loading: true, error: null }));
+
+    fn(controller.signal)
+      .then((data) => {
+        if (cancelled) return;
+        setState({ data, loading: false, error: null });
+      })
+      .catch((error: unknown) => {
+        if (cancelled || controller.signal.aborted) return;
+        const err = error instanceof Error ? error : new Error(String(error));
+        setState({ data: null, loading: false, error: err });
+      });
+
+    return () => {
+      cancelled = true;
+      controller.abort();
+    };
+    // Callers own the dependency array — `fn` is intentionally not listed
+    // here so the effect only re-runs when the caller asks it to.
+  }, deps);
+
+  return state;
+}

frontend/portal/src/mocks/assistant.ts

@@ -0,0 +1,61 @@
+/** Mock assistant: routing rules + canned replies + suggested prompts. */
+
+export interface AssistantRoute {
+  patterns: readonly RegExp[];
+  reply: string;
+}
+
+export const ASSISTANT_ROUTES: AssistantRoute[] = [
+  {
+    patterns: [/extract/i, /schema/i],
+    reply:
+      "For extraction, point the doc at /v1/<endpoint> and the schema-aware op infers fields from your typed catalogue. Confidence-check gates anything under 0.85 by default — adjust the threshold in the composer's per-op config.",
+  },
+  {
+    patterns: [/mcp/i, /\bagent\b/i, /connect.*agent/i],
+    reply:
+      "MCP wiring lives under Sources → Add → Agent. You'll get an MCP URL of the shape mcp://stirling.com/agents/{id} plus scoped credentials. Scenarios drive the eval set the agent must pass before it can take real traffic.",
+  },
+  {
+    patterns: [/redact/i, /pii/i],
+    reply:
+      "The redact op runs PII enforcement across SSN / DOB / accounts / contacts / names / addresses by default. Toggle categories in the composer; auto-detected PII supports blackout, replace, and mask styles.",
+  },
+  {
+    patterns: [/deploy/i, /docker/i, /self.host/i],
+    reply:
+      "Self-host via the docker variant from /editor → Self-Hosted. Air-gapped tarballs ship on Enterprise. Helm charts cover us-east-1, eu-west-1, ap-southeast-1; multi-region requires the Enterprise plan.",
+  },
+  {
+    patterns: [/rate.*limit/i, /quota/i, /throttl/i],
+    reply:
+      "Free is 4.2 req/min. Pro scales to 342 req/min with burst tolerance. Enterprise lifts to 2.4k req/min with per-region pools. The 429 response carries Retry-After in seconds.",
+  },
+  {
+    patterns: [/webhook/i, /callback/i],
+    reply:
+      "Outbound webhooks deliver via 3× exponential backoff. We sign every payload with HMAC-SHA256 — verify via the X-Stirling-Signature header. Inbound webhooks support Bearer, HMAC, or mTLS auth.",
+  },
+];
+
+export const ASSISTANT_DEFAULT_REPLY =
+  "I can help with extraction, MCP / agents, redaction, deployment, rate limits, and webhooks. Try one of the suggestions, or ask something specific.";
+
+export const ASSISTANT_SUGGESTIONS: readonly string[] = [
+  "How do I wire an MCP agent?",
+  "Extract fields from a COI",
+  "Redact PII before storage",
+  "Self-host with Docker",
+  "What are the rate limits?",
+  "Build a pipeline from a sample",
+];
+
+/** Resolve an input to a canned reply by walking the route table. */
+export function routeAssistantReply(input: string): string {
+  for (const route of ASSISTANT_ROUTES) {
+    for (const pattern of route.patterns) {
+      if (pattern.test(input)) return route.reply;
+    }
+  }
+  return ASSISTANT_DEFAULT_REPLY;
+}

frontend/portal/src/mocks/browser.ts

@@ -0,0 +1,23 @@
+import { setupWorker } from "msw/browser";
+import { handlers } from "@portal/mocks/handlers";
+
+export const worker = setupWorker(...handlers);
+
+let workerStarted = false;
+
+/**
+ * Start the MSW worker. Idempotent — calling repeatedly is safe.
+ *
+ * The toggle flips MSW by writing the preference to localStorage and
+ * reloading the page, so there's no need for a `stopMockWorker` counterpart:
+ * the next boot just decides whether to call this or not.
+ */
+export async function startMockWorker(): Promise<void> {
+  if (workerStarted) return;
+  await worker.start({
+    onUnhandledRequest: "bypass",
+    serviceWorker: { url: "/mockServiceWorker.js" },
+    quiet: true,
+  });
+  workerStarted = true;
+}

frontend/portal/src/mocks/handlers/assistant.ts

@@ -0,0 +1,21 @@
+import { http, HttpResponse, delay } from "msw";
+import {
+  ASSISTANT_SUGGESTIONS,
+  routeAssistantReply,
+} from "@portal/mocks/assistant";
+
+interface AssistantMessageBody {
+  input: string;
+}
+
+export const assistantHandlers = [
+  http.get("/v1/assistant/suggestions", async () => {
+    return HttpResponse.json(ASSISTANT_SUGGESTIONS);
+  }),
+
+  http.post("/v1/assistant/messages", async ({ request }) => {
+    const body = (await request.json()) as AssistantMessageBody;
+    await delay(600 + Math.random() * 300);
+    return HttpResponse.json({ reply: routeAssistantReply(body.input) });
+  }),
+];

frontend/portal/src/mocks/handlers/endpoints.ts

@@ -0,0 +1,15 @@
+import { http, HttpResponse, delay } from "msw";
+import { VERTICALS } from "@shared/data/endpoints";
+
+export const endpointsHandlers = [
+  http.get("/v1/endpoints", async ({ request }) => {
+    await delay(120);
+    const url = new URL(request.url);
+    const verticalKey = url.searchParams.get("vertical");
+    if (verticalKey) {
+      const v = VERTICALS.find((x) => x.key === verticalKey);
+      return HttpResponse.json(v ? v.endpoints : []);
+    }
+    return HttpResponse.json(VERTICALS);
+  }),
+];

frontend/portal/src/mocks/handlers/home.ts

@@ -0,0 +1,49 @@
+import { http, HttpResponse, delay } from "msw";
+import type { Tier } from "@portal/contexts/TierContext";
+import {
+  buildUsageSeries,
+  buildUsageSeriesResponse,
+  enterpriseKpisFor,
+  FREE_KPIS,
+  FREE_ONBOARDING,
+  proKpisFor,
+  RECENT_ACTIVITY,
+  REGION_HEALTH,
+  type KpiEntry,
+} from "@portal/mocks/home";
+
+function kpisFor(tier: Tier): KpiEntry[] {
+  if (tier === "free") return FREE_KPIS;
+  const docs30d = buildUsageSeries().reduce((sum, p) => sum + p.value, 0);
+  if (tier === "enterprise") return enterpriseKpisFor(docs30d);
+  return proKpisFor(docs30d);
+}
+
+export const homeHandlers = [
+  http.get("/v1/analytics/usage", async () => {
+    await delay(120);
+    return HttpResponse.json(buildUsageSeriesResponse());
+  }),
+
+  http.get("/v1/activity", async () => {
+    await delay(120);
+    return HttpResponse.json(RECENT_ACTIVITY);
+  }),
+
+  http.get("/v1/home/kpis", async ({ request }) => {
+    await delay(120);
+    const url = new URL(request.url);
+    const tier = (url.searchParams.get("tier") ?? "pro") as Tier;
+    return HttpResponse.json(kpisFor(tier));
+  }),
+
+  http.get("/v1/regions/health", async () => {
+    await delay(120);
+    return HttpResponse.json(REGION_HEALTH);
+  }),
+
+  http.get("/v1/onboarding", async () => {
+    await delay(120);
+    return HttpResponse.json(FREE_ONBOARDING);
+  }),
+];

frontend/portal/src/mocks/handlers/index.ts

@@ -0,0 +1,17 @@
+import { assistantHandlers } from "@portal/mocks/handlers/assistant";
+import { endpointsHandlers } from "@portal/mocks/handlers/endpoints";
+import { homeHandlers } from "@portal/mocks/handlers/home";
+import { notificationsHandlers } from "@portal/mocks/handlers/notifications";
+import { opsHandlers } from "@portal/mocks/handlers/ops";
+import { searchHandlers } from "@portal/mocks/handlers/search";
+
+export const handlers = [
+  ...homeHandlers,
+  ...opsHandlers,
+  ...notificationsHandlers,
+  ...assistantHandlers,
+  ...searchHandlers,
+  ...endpointsHandlers,
+];
+
+export { resetNotificationsStore } from "@portal/mocks/handlers/notifications";

frontend/portal/src/mocks/handlers/notifications.ts

@@ -0,0 +1,21 @@
+import { http, HttpResponse, delay } from "msw";
+import { NOTIFICATIONS, type Notification } from "@portal/mocks/notifications";
+
+let store: Notification[] = [...NOTIFICATIONS];
+
+export function resetNotificationsStore(seed?: Notification[]): void {
+  store = seed ? [...seed] : [...NOTIFICATIONS];
+}
+
+export const notificationsHandlers = [
+  http.get("/v1/notifications", async () => {
+    await delay(120);
+    return HttpResponse.json(store);
+  }),
+
+  http.post("/v1/notifications/mark-all-read", async () => {
+    await delay(120);
+    store = [];
+    return HttpResponse.json({ ok: true });
+  }),
+];

frontend/portal/src/mocks/handlers/ops.ts

@@ -0,0 +1,30 @@
+import { http, HttpResponse, delay } from "msw";
+import { FEATURED_OPS, OP_RESULTS } from "@portal/mocks/ops";
+
+export const opsHandlers = [
+  http.get("/v1/ops/featured", async () => {
+    await delay(120);
+    return HttpResponse.json(FEATURED_OPS);
+  }),
+
+  http.post("/v1/ops/:opId/run", async ({ params }) => {
+    const start = performance.now();
+    await delay(800 + Math.random() * 200);
+    const opId = String(params.opId);
+    const result = OP_RESULTS[opId];
+    if (!result) {
+      return HttpResponse.json(
+        { error: `Unknown op: ${opId}` },
+        { status: 404 },
+      );
+    }
+    const enriched =
+      opId === "sign-output"
+        ? { ...result, signed_at: new Date().toISOString() }
+        : result;
+    return HttpResponse.json({
+      result: enriched,
+      durationMs: Math.round(performance.now() - start),
+    });
+  }),
+];

frontend/portal/src/mocks/handlers/search.ts

@@ -0,0 +1,8 @@
+import { http, HttpResponse } from "msw";
+import { QUICK_ACTIONS } from "@portal/mocks/search";
+
+export const searchHandlers = [
+  http.get("/v1/search/quick-actions", () => {
+    return HttpResponse.json(QUICK_ACTIONS);
+  }),
+];

frontend/portal/src/mocks/home.ts

@@ -0,0 +1,255 @@
+/**
+ * Home dashboard fixtures and the types api/home.ts shares with them.
+ * api/home.ts imports the types; the MSW handlers in mocks/handlers/ serve the
+ * fixture data over the intercepted httpJson() calls. Components never reach
+ * into this module directly.
+ *
+ * Once a real backend exists, the MSW handlers stop being registered and these
+ * fixtures can be deleted (or kept as test seeds).
+ */
+
+export interface UsagePoint {
+  /** ISO date (YYYY-MM-DD). */
+  date: string;
+  /** Docs processed on that day. */
+  value: number;
+}
+
+/**
+ * Server response for the usage-series endpoint. Returning the prior window's
+ * total alongside the points lets the client derive the headline delta
+ * deterministically from real data rather than carrying a hardcoded figure.
+ */
+export interface UsageSeriesResponse {
+  points: UsagePoint[];
+  /** Equivalent docs total from the immediately prior 30-day window. */
+  priorTotal: number;
+}
+
+/** Builds 30 daily points ending today. Deterministic per day. */
+export function buildUsageSeries(): UsagePoint[] {
+  const points: UsagePoint[] = [];
+  const now = new Date();
+  for (let i = 29; i >= 0; i--) {
+    const d = new Date(now);
+    d.setDate(now.getDate() - i);
+    const day = d.getDay();
+    // Weekend dip + slow uptrend + bounded noise.
+    const weekend = day === 0 || day === 6 ? 0.55 : 1;
+    const trend = 1 + (30 - i) * 0.012;
+    const wobble = 1 + Math.sin(i * 1.3) * 0.18 + Math.cos(i * 0.6) * 0.09;
+    const base = 1450 * weekend * trend * wobble;
+    points.push({
+      date: d.toISOString().slice(0, 10),
+      value: Math.round(base),
+    });
+  }
+  return points;
+}
+
+/** Builds the full usage payload with a plausible prior-window total. */
+export function buildUsageSeriesResponse(): UsageSeriesResponse {
+  const points = buildUsageSeries();
+  const currentTotal = points.reduce((sum, p) => sum + p.value, 0);
+  // The current window's series simulates ~12% growth over the prior one.
+  const priorTotal = Math.round(currentTotal / 1.12);
+  return { points, priorTotal };
+}
+
+export type ActivityKind =
+  | "pipeline-run"
+  | "deploy"
+  | "drift"
+  | "eval"
+  | "agent"
+  | "billing";
+
+export interface ActivityEvent {
+  id: string;
+  kind: ActivityKind;
+  /** Short action verb shown at the top of the row. */
+  action: string;
+  /** Subject of the action (pipeline / endpoint / agent name). */
+  subject: string;
+  /** One-line detail line under the action. */
+  detail: string;
+  /** Relative-time string. */
+  time: string;
+  status: "success" | "warning" | "danger" | "info";
+}
+
+export const RECENT_ACTIVITY: ActivityEvent[] = [
+  {
+    id: "act-1",
+    kind: "pipeline-run",
+    action: "Pipeline run completed",
+    subject: "COI Compliance",
+    detail: "1,287 docs · 0.4% errors · P95 412 ms",
+    time: "2m ago",
+    status: "success",
+  },
+  {
+    id: "act-2",
+    kind: "deploy",
+    action: "Deployed",
+    subject: "Prior Auth v3.1.0",
+    detail: "Promoted to us-east-1, eu-west-1 · golden set 36/36",
+    time: "14m ago",
+    status: "success",
+  },
+  {
+    id: "act-3",
+    kind: "drift",
+    action: "Schema drift detected",
+    subject: "Invoice v3",
+    detail: "12 docs in 1h didn't match — confidence ↓ 0.07",
+    time: "1h ago",
+    status: "warning",
+  },
+  {
+    id: "act-4",
+    kind: "eval",
+    action: "Eval set passed",
+    subject: "KYC Processor",
+    detail: "94% (26/28) — 2 cases sent to review",
+    time: "3h ago",
+    status: "success",
+  },
+  {
+    id: "act-5",
+    kind: "agent",
+    action: "Agent escalated",
+    subject: "Contract Router",
+    detail: "Low-confidence DPA routed to L2 reviewer pool",
+    time: "5h ago",
+    status: "info",
+  },
+  {
+    id: "act-6",
+    kind: "pipeline-run",
+    action: "Pipeline run failed",
+    subject: "Contract Review",
+    detail: "8% error rate · 14 docs sent to review queue",
+    time: "8h ago",
+    status: "danger",
+  },
+  {
+    id: "act-7",
+    kind: "billing",
+    action: "Approaching cap",
+    subject: "Monthly usage",
+    detail: "389k of 500k docs · auto-upgrade disabled",
+    time: "yesterday",
+    status: "warning",
+  },
+  {
+    id: "act-8",
+    kind: "deploy",
+    action: "Rolled back",
+    subject: "COI Compliance v2.3.7",
+    detail: "Confidence regressions on Carrier supplement",
+    time: "2d ago",
+    status: "warning",
+  },
+];
+
+/**
+ * KPI labels are owned by the client (see `KPI_LABELS_BY_TIER` in Home.tsx)
+ * because they're product copy that should stay stable across loading / empty
+ * / ready states. The API only ships values + deltas.
+ */
+export interface KpiEntry {
+  value: string | number;
+  delta?: number;
+  description?: string;
+  deltaDirection?: "up" | "down" | "flat";
+}
+
+export const FREE_KPIS: KpiEntry[] = [
+  { value: "247 / 500" },
+  { value: 189 },
+  { value: 3 },
+  { value: 1 },
+];
+
+export function proKpisFor(docs30d: number): KpiEntry[] {
+  return [
+    { value: docs30d.toLocaleString(), delta: 0.12 },
+    { value: 12, delta: 0.16 },
+    { value: 7, delta: 0.4 },
+    { value: "94.6%", delta: 0.02 },
+  ];
+}
+
+export function enterpriseKpisFor(docs30d: number): KpiEntry[] {
+  return [
+    { value: docs30d.toLocaleString(), delta: 0.18 },
+    { value: "412 ms", delta: -0.05 },
+    { value: "96.2%", delta: 0.01 },
+    { value: "99.987%" },
+  ];
+}
+
+export interface RegionHealth {
+  name: string;
+  status: "healthy" | "degraded" | "down";
+  meta: string;
+}
+
+export const REGION_HEALTH: RegionHealth[] = [
+  {
+    name: "us-east-1",
+    status: "healthy",
+    meta: "2.1k/min · P95 287ms · 99.99% uptime",
+  },
+  {
+    name: "eu-west-1",
+    status: "healthy",
+    meta: "1.4k/min · P95 312ms · 99.98% uptime",
+  },
+  {
+    name: "ap-southeast-1",
+    status: "degraded",
+    meta: "412/min · P95 521ms · 99.92% uptime · degraded",
+  },
+];
+
+export interface OnboardingStep {
+  id: string;
+  title: string;
+  blurb: string;
+  done: boolean;
+  /** What to render in the per-step CTA slot. */
+  cta?: { kind: "try-op" } | { kind: "navigate"; target: string };
+}
+
+export const FREE_ONBOARDING: OnboardingStep[] = [
+  {
+    id: "first-op",
+    title: "Run your first operation",
+    blurb: "Try extract, redact, or OCR on a sample document.",
+    done: true,
+    cta: { kind: "try-op" },
+  },
+  {
+    id: "connect-source",
+    title: "Connect a source",
+    blurb: "Attach an S3 bucket, webhook, or email inbox.",
+    done: false,
+    cta: { kind: "navigate", target: "sources" },
+  },
+  {
+    id: "build-pipeline",
+    title: "Build a pipeline",
+    blurb: "Compose ops into a repeatable workflow.",
+    done: false,
+    cta: { kind: "navigate", target: "pipelines" },
+  },
+  {
+    id: "wire-agent",
+    title: "Wire an agent",
+    blurb: "Expose Stirling via MCP or REST tool definitions.",
+    done: false,
+    cta: { kind: "navigate", target: "sources" },
+  },
+];

frontend/portal/src/mocks/notifications.ts

@@ -0,0 +1,63 @@
+/** Mock notifications for the header dropdown. */
+
+export type NotificationCategory =
+  | "pipeline"
+  | "deploy"
+  | "billing"
+  | "audit"
+  | "agent"
+  | "doc";
+
+export interface Notification {
+  id: string;
+  category: NotificationCategory;
+  title: string;
+  description: string;
+  /** Relative-time string. */
+  time: string;
+}
+
+export const NOTIFICATIONS: Notification[] = [
+  {
+    id: "n1",
+    category: "pipeline",
+    title: "COI Compliance — golden set passed",
+    description: "48/48 docs reproduced expected outputs after schema change",
+    time: "2m ago",
+  },
+  {
+    id: "n2",
+    category: "deploy",
+    title: "Deploy succeeded — Prior Auth v2.4",
+    description: "Rolled to us-east-1 + eu-west-1. P99 142ms.",
+    time: "14m ago",
+  },
+  {
+    id: "n3",
+    category: "billing",
+    title: "Approaching 80% of monthly cap",
+    description: "389k of 500k docs processed. Auto-upgrade not enabled.",
+    time: "1h ago",
+  },
+  {
+    id: "n4",
+    category: "audit",
+    title: "Four-eyes elevation requested",
+    description: "Compliance Lead approval pending for redacted doc #28471",
+    time: "3h ago",
+  },
+  {
+    id: "n5",
+    category: "agent",
+    title: "KYC Processor — eval drop",
+    description: "Pass rate fell to 87% on the latest 72h window",
+    time: "5h ago",
+  },
+  {
+    id: "n6",
+    category: "doc",
+    title: "Schema drift detected — Invoice v3",
+    description: "12 docs in last 24h didn't match expected schema",
+    time: "yesterday",
+  },
+];

frontend/portal/src/mocks/ops.ts

@@ -0,0 +1,166 @@
+/**
+ * Mock op catalogue + canned operation results for the single-op runner.
+ * Only api/ops.ts imports from this file.
+ */
+
+export type OpResultMap = Record<string, unknown>;
+
+export interface FeaturedOp {
+  id: string;
+  label: string;
+  endpoint: string;
+  accent: "blue" | "purple" | "green" | "amber" | "red";
+  /** Shown in the picker — short single line. */
+  blurb: string;
+}
+
+export const FEATURED_OPS: FeaturedOp[] = [
+  {
+    id: "extract",
+    label: "Extract",
+    endpoint: "/v1/extract",
+    accent: "blue",
+    blurb: "Pull structured fields into a typed schema",
+  },
+  {
+    id: "redact",
+    label: "Redact PII",
+    endpoint: "/v1/redact",
+    accent: "red",
+    blurb: "Mask SSN, DOB, addresses, accounts before storage",
+  },
+  {
+    id: "classify",
+    label: "Classify",
+    endpoint: "/v1/classify",
+    accent: "purple",
+    blurb: "Identify document type with a confidence score",
+  },
+  {
+    id: "ocr",
+    label: "OCR",
+    endpoint: "/v1/ocr",
+    accent: "green",
+    blurb: "Text-recognize scanned or image pages",
+  },
+  {
+    id: "validate",
+    label: "Schema validate",
+    endpoint: "/v1/validate",
+    accent: "blue",
+    blurb: "Check fields, rules, and coverage against the schema",
+  },
+  {
+    id: "sign-output",
+    label: "Sign output",
+    endpoint: "/v1/sign",
+    accent: "green",
+    blurb: "Tamper-evident signature over artifact + run metadata",
+  },
+  {
+    id: "authenticity",
+    label: "Authenticity",
+    endpoint: "/v1/authenticity",
+    accent: "blue",
+    blurb: "Verify issuer signature, watermark, and metadata",
+  },
+  {
+    id: "tamper-check",
+    label: "Tamper check",
+    endpoint: "/v1/tamper-check",
+    accent: "amber",
+    blurb: "Detect modifications since signing or last-known-good state",
+  },
+  {
+    id: "encrypt-rest",
+    label: "Encrypt at rest",
+    endpoint: "/v1/encrypt",
+    accent: "purple",
+    blurb: "AES-256 with Stirling-managed, BYOK, or HYOK keys",
+  },
+  {
+    id: "smart-redact",
+    label: "Smart redact",
+    endpoint: "/v1/smart-redact",
+    accent: "red",
+    blurb: "Schema-aware redaction with confidence gating",
+  },
+];
+
+/** Canned JSON for each featured op's runner "done" state. */
+export const OP_RESULTS: Record<string, OpResultMap> = {
+  extract: {
+    schema: "coi.v2",
+    fields: {
+      carrier: "Travelers Casualty",
+      policy_number: "PHB-1108-2025",
+      gl_limit: 1_000_000,
+      umbrella_limit: 5_000_000,
+      effective: "2026-01-15",
+      expiry: "2027-01-15",
+    },
+    confidence_avg: 0.96,
+  },
+  redact: {
+    redacted_pages: 4,
+    pii_types: ["SSN", "DOB", "ADDRESS", "EMAIL"],
+    occurrences: 19,
+    redaction_style: "blackout",
+    audit_id: "rdct_01HVQ7K3ZA9YJ8C",
+  },
+  classify: {
+    schema: "invoice.v3",
+    confidence: 0.94,
+    alternatives: [
+      { schema: "credit_memo.v1", confidence: 0.04 },
+      { schema: "purchase_order.v2", confidence: 0.02 },
+    ],
+    processing_ms: 287,
+  },
+  ocr: {
+    pages: 12,
+    characters_recognized: 28471,
+    confidence_avg: 0.987,
+    languages_detected: ["en"],
+    processing_ms: 1840,
+  },
+  validate: {
+    schema: "coi.v2",
+    passed: true,
+    checks_run: 14,
+    warnings: [
+      { field: "additional_insured", message: "Optional field empty" },
+    ],
+  },
+  "sign-output": {
+    algorithm: "Ed25519",
+    key_id: "kx-prod-2026",
+    manifest_hash:
+      "0xb3f0c1a9d54fa1c0b8fd4eebd7fa11b1b16c9a3e2d2cc6f1f5a2f0a87e1b7a04",
+  },
+  authenticity: {
+    verified: true,
+    issuer: "State of California DMV",
+    signed_at: "2025-11-04T17:22:00Z",
+    watermark_match: true,
+  },
+  "tamper-check": {
+    tampered: false,
+    hash_match: true,
+    modifications_detected: 0,
+    last_known_good: "2026-04-22T09:14:00Z",
+  },
+  "encrypt-rest": {
+    algorithm: "AES-256-GCM",
+    key_mode: "BYOK",
+    key_id: "arn:aws:kms:us-east-1:123:key/abc-…",
+    object_id: "obj_01HVQ7M9B2",
+  },
+  "smart-redact": {
+    schema: "coi.v2",
+    redacted_fields: ["named_insured", "dob"],
+    occurrences: 7,
+    confidence_gate: 0.85,
+    gated_by_confidence: 1,
+  },
+};

frontend/portal/src/mocks/preference.ts

@@ -0,0 +1,23 @@
+/// <reference types="vite/client" />
+
+/**
+ * Lightweight preference helpers — pulled out of mocks/browser.ts so they
+ * don't drag MSW + every handler + every fixture into any chunk that just
+ * needs to *read* the user's choice. Loading the actual worker stays a
+ * dynamic import.
+ */
+
+const STORAGE_KEY = "stirling.portal.mocks-enabled";
+
+export function readMocksPreference(): boolean {
+  if (typeof window === "undefined") return false;
+  const stored = window.localStorage.getItem(STORAGE_KEY);
+  if (stored === "true") return true;
+  if (stored === "false") return false;
+  return import.meta.env.DEV;
+}
+
+export function writeMocksPreference(enabled: boolean): void {
+  if (typeof window === "undefined") return;
+  window.localStorage.setItem(STORAGE_KEY, String(enabled));
+}

frontend/portal/src/mocks/search.ts

@@ -0,0 +1,18 @@
+/** Mock quick-action catalogue for the ⌘K search palette. */
+
+export interface QuickAction {
+  group: "Jump to" | "Create" | "Theme";
+  label: string;
+  /** Keyboard hint shown to the right. */
+  hint: string;
+}
+
+export const QUICK_ACTIONS: QuickAction[] = [
+  { group: "Jump to", label: "Home", hint: "G H" },
+  { group: "Jump to", label: "Pipelines", hint: "G P" },
+  { group: "Jump to", label: "Sources", hint: "G S" },
+  { group: "Jump to", label: "Documents", hint: "G D" },
+  { group: "Create", label: "New pipeline", hint: "N P" },
+  { group: "Create", label: "New API key", hint: "N K" },
+  { group: "Theme", label: "Toggle dark / light", hint: "T" },
+];

frontend/portal/src/theme/MantineIntegration.stories.tsx

@@ -0,0 +1,46 @@
+import type { Meta, StoryObj } from "@storybook/react-vite";
+import {
+  Button as MantineButton,
+  Group,
+  Stack,
+  TextInput,
+} from "@mantine/core";
+import { Button as SuiButton } from "@shared/components";
+
+/**
+ * Proof that Mantine components render with the SUI-bound theme — a Mantine
+ * filled button uses --color-blue, so it sits next to a SUI button as one
+ * system. This is the "escape hatch" pattern: reach for Mantine when a
+ * component isn't worth rebuilding in SUI, and it still looks on-brand.
+ */
+const meta: Meta = {
+  title: "Portal/Theme/Mantine Integration",
+  parameters: { layout: "padded" },
+};
+export default meta;
+
+type Story = StoryObj;
+
+export const SideBySide: Story = {
+  render: () => (
+    <Stack gap="md" style={{ maxWidth: 420 }}>
+      <Group>
+        <SuiButton>SUI Button</SuiButton>
+        <MantineButton color="blue">Mantine Button</MantineButton>
+      </Group>
+      <Group>
+        <MantineButton color="green">Mantine green</MantineButton>
+        <MantineButton color="red">Mantine red</MantineButton>
+        <MantineButton color="amber">Mantine amber</MantineButton>
+        <MantineButton color="purple">Mantine purple</MantineButton>
+      </Group>
+      <MantineButton variant="light" color="blue">
+        Light variant (uses --color-blue-light)
+      </MantineButton>
+      <TextInput
+        label="Mantine TextInput"
+        placeholder="Reach for Mantine form controls when SUI doesn't have one"
+      />
+    </Stack>
+  ),
+};

frontend/portal/src/theme/mantineTheme.ts

@@ -0,0 +1,87 @@
+import { createTheme, type MantineColorsTuple } from "@mantine/core";
+
+/**
+ * Mantine theme for the portal, bound to the SUI design tokens in
+ * shared/tokens/tokens.css. This is what lets a Mantine component (e.g. a
+ * Combobox we don't want to rebuild in SUI) sit next to a SUI <Card> and look
+ * like one system.
+ *
+ * SUI exposes ~4 named shades per colour (`-light`, `-border`, base, `-dark`),
+ * but Mantine requires a 10-slot tuple. `tuple()` spreads the SUI shades across
+ * the 10 slots, with index 6 — Mantine's default `filled` shade — landing on
+ * the base brand colour. Because every slot is a `var(--color-*)` reference and
+ * those variables flip under `[data-theme="dark"]`, the Mantine theme follows
+ * SUI's light/dark switch automatically with no extra wiring.
+ *
+ * Caveat: every shade is a `var(--color-*)` reference, not a literal colour, so
+ * Mantine's JS colour maths can't read it. Don't enable `autoContrast` or rely
+ * on `theme.fn.lighten/darken/alpha` for these palettes — they need real hex
+ * values. CSS `color-mix()` variants work fine.
+ */
+function tuple(
+  light: string,
+  border: string,
+  base: string,
+  dark: string,
+): MantineColorsTuple {
+  return [
+    `var(${light})`, // 0  subtle background
+    `var(${light})`, // 1
+    `var(${border})`, // 2
+    `var(${border})`, // 3
+    `var(${base})`, // 4
+    `var(${base})`, // 5
+    `var(${base})`, // 6  default filled shade
+    `var(${dark})`, // 7  hover
+    `var(${dark})`, // 8
+    `var(${dark})`, // 9
+  ];
+}
+
+const blue = tuple(
+  "--color-blue-light",
+  "--color-blue-border",
+  "--color-blue",
+  "--color-blue-dark",
+);
+const green = tuple(
+  "--color-green-light",
+  "--color-green-border",
+  "--color-green",
+  "--color-green-dark",
+);
+const red = tuple(
+  "--color-red-light",
+  "--color-red-border",
+  "--color-red",
+  "--color-red-dark",
+);
+const amber = tuple(
+  "--color-amber-light",
+  "--color-amber-border",
+  "--color-amber",
+  "--color-amber-dark",
+);
+const purple = tuple(
+  "--color-purple-light",
+  "--color-purple-border",
+  "--color-purple",
+  "--color-purple-dark",
+);
+
+export const mantineTheme = createTheme({
+  primaryColor: "blue",
+  // Mantine uses index 6 of the tuple for filled components by default, which
+  // is where tuple() places the base brand shade.
+  primaryShade: 6,
+  colors: {
+    blue,
+    green,
+    red,
+    amber,
+    purple,
+  },
+  fontFamily: "var(--font-sans)",
+  fontFamilyMonospace: "var(--font-mono)",
+  defaultRadius: "var(--radius-md)",
+});

frontend/portal/src/views/Documents.css

@@ -0,0 +1,5 @@
+.portal-documents {
+  padding: 1.5rem;
+  max-width: 78rem;
+  margin: 0 auto;
+}

frontend/portal/src/views/Documents.tsx

@@ -0,0 +1,15 @@
+import { DocumentTypeGrid } from "@portal/components/DocumentTypeGrid";
+import "@portal/views/Documents.css";
+
+/**
+ * Full document-type catalogue — the exhaustive per-vertical endpoint list.
+ * Home only teases four use cases (see PopularUseCases); the complete,
+ * tab-filterable grid lives here on its own surface.
+ */
+export function Documents() {
+  return (
+    <div className="portal-documents">
+      <DocumentTypeGrid />
+    </div>
+  );
+}

frontend/portal/src/views/Home.css

@@ -0,0 +1,276 @@
+.portal-home {
+  display: flex;
+  flex-direction: column;
+  gap: 1.25rem;
+  padding: 1.5rem;
+  max-width: 78rem;
+  margin: 0 auto;
+}
+
+/* Product card grid */
+.portal-home__product-grid {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 0.875rem;
+}
+
+@media (max-width: 60rem) {
+  .portal-home__product-grid {
+    grid-template-columns: 1fr;
+  }
+}
+
+.portal-home__product-head {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.5rem;
+  margin-bottom: 0.5rem;
+}
+
+.portal-home__product-title {
+  margin: 0;
+  font-size: 1.0625rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+
+.portal-home__product-blurb {
+  margin: 0 0 1rem;
+  font-size: 0.8125rem;
+  line-height: 1.5;
+  color: var(--color-text-3);
+}
+
+/* Metric strip */
+.portal-home__metrics {
+  display: grid;
+  grid-template-columns: repeat(4, 1fr);
+  gap: 0.75rem;
+}
+
+@media (max-width: 50rem) {
+  .portal-home__metrics {
+    grid-template-columns: repeat(2, 1fr);
+  }
+}
+
+/* Two-column dashboard row (activity + quick actions) */
+.portal-home__row {
+  display: grid;
+  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
+  gap: 1rem;
+  align-items: stretch;
+}
+
+@media (max-width: 60rem) {
+  .portal-home__row {
+    grid-template-columns: 1fr;
+  }
+}
+
+/* Quick actions card */
+.portal-home__quick-head {
+  margin-bottom: 0.625rem;
+}
+
+.portal-home__quick-title {
+  margin: 0;
+  font-size: 0.9375rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+
+.portal-home__quick-sub {
+  font-size: 0.75rem;
+  color: var(--color-text-4);
+}
+
+.portal-home__quick-list {
+  display: flex;
+  flex-direction: column;
+  gap: 0.375rem;
+}
+
+.portal-home__quick-row {
+  display: grid;
+  grid-template-columns: auto 1fr auto;
+  align-items: center;
+  gap: 0.625rem;
+  padding: 0.5rem 0.625rem;
+  background: var(--color-bg-subtle);
+  border: 1px solid var(--color-border-light);
+  border-radius: var(--radius-md);
+  text-align: left;
+  transition:
+    background var(--motion-fast),
+    border-color var(--motion-fast);
+}
+
+.portal-home__quick-row:hover {
+  background: var(--color-bg-hover);
+  border-color: var(--color-border);
+}
+
+.portal-home__quick-icon {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 1.75rem;
+  height: 1.75rem;
+  border-radius: var(--radius-md);
+  font-size: 0.875rem;
+  font-weight: 600;
+}
+
+.portal-home__quick-text {
+  display: flex;
+  flex-direction: column;
+  min-width: 0;
+}
+
+.portal-home__quick-text strong {
+  font-size: 0.8125rem;
+  color: var(--color-text-1);
+  font-weight: 600;
+}
+
+.portal-home__quick-text span {
+  font-size: 0.75rem;
+  color: var(--color-text-4);
+}
+
+.portal-home__quick-arrow {
+  font-size: 0.875rem;
+  color: var(--color-text-5);
+}
+
+.portal-home__quick-row:hover .portal-home__quick-arrow {
+  color: var(--color-blue);
+}
+
+/* Free-tier onboarding card */
+.portal-home__onboard-head {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 0.5rem;
+  margin-bottom: 0.875rem;
+}
+
+.portal-home__onboard-title {
+  margin: 0;
+  font-size: 0.9375rem;
+  font-weight: 600;
+  color: var(--color-text-1);
+}
+
+.portal-home__onboard-sub {
+  margin: 0;
+  font-size: 0.75rem;
+  color: var(--color-text-4);
+}
+
+.portal-home__onboard-list {
+  list-style: none;
+  margin: 0;
+  padding: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+}
+
+.portal-home__onboard-step {
+  display: grid;
+  grid-template-columns: auto 1fr auto;
+  align-items: center;
+  gap: 0.75rem;
+  padding: 0.5rem 0.625rem;
+  background: var(--color-bg-subtle);
+  border: 1px solid var(--color-border-light);
+  border-radius: var(--radius-md);
+}
+
+.portal-home__onboard-step.is-done {
+  background: var(--color-green-light);
+  border-color: color-mix(in srgb, var(--color-green) 30%, transparent);
+}
+
+.portal-home__onboard-mark {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 1.5rem;
+  height: 1.5rem;
+  border-radius: 50%;
+  font-size: 0.75rem;
+  font-weight: 600;
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  color: var(--color-text-4);
+}
+
+.portal-home__onboard-step.is-done .portal-home__onboard-mark {
+  background: var(--color-green);
+  color: var(--color-text-on-accent);
+  border-color: var(--color-green);
+}
+
+.portal-home__onboard-text {
+  display: flex;
+  flex-direction: column;
+  min-width: 0;
+}
+
+.portal-home__onboard-text strong {
+  font-size: 0.8125rem;
+  color: var(--color-text-1);
+  font-weight: 600;
+}
+
+.portal-home__onboard-text span {
+  font-size: 0.75rem;
+  color: var(--color-text-4);
+}
+
+/* Enterprise region strip */
+.portal-home__regions {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 0.5rem;
+}
+
+@media (max-width: 50rem) {
+  .portal-home__regions {
+    grid-template-columns: 1fr;
+  }
+}
+
+.portal-home__region {
+  padding: 0.625rem 0.75rem;
+  background: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+}
+
+.portal-home__region-name {
+  display: flex;
+  align-items: center;
+  gap: 0.375rem;
+  font-size: 0.8125rem;
+  font-weight: 500;
+  color: var(--color-text-1);
+}
+
+.portal-home__region-dot {
+  width: 0.4375rem;
+  height: 0.4375rem;
+  border-radius: 50%;
+}
+
+.portal-home__region-meta {
+  margin-top: 0.25rem;
+  font-size: 0.6875rem;
+  color: var(--color-text-4);
+  font-family: var(--font-mono);
+}