Merge branch 'main' into SaaS

frontend/editor/src/core/components/chat/ChatFAB.tsx

@@ -0,0 +1,8 @@
+/**
+ * Core stub for the floating action button chat widget.
+ * The real implementation lives in proprietary/components/chat/ChatFAB.tsx
+ * and shadows this via the @app/* alias cascade in proprietary builds.
+ */
+export function ChatFAB() {
+  return null;
+}

frontend/editor/src/core/components/layout/Workbench.tsx

@@ -17,6 +17,7 @@ import WorkbenchBar from "@app/components/shared/WorkbenchBar";
 import LandingPage from "@app/components/shared/LandingPage";
 import Footer from "@app/components/shared/Footer";
 import DismissAllErrorsButton from "@app/components/shared/DismissAllErrorsButton";
+import { ChatFAB } from "@app/components/chat/ChatFAB";
 
 // Workbench panels are loaded on demand. Viewer pulls in pdfjs-dist and the
 // full @embedpdf plugin set; FileEditor/PageEditor are only needed once a file
@@ -225,6 +226,9 @@ export default function Workbench() {
       {/* Dismiss All Errors Button */}
       <DismissAllErrorsButton />
 
+      {/* Floating AI chat button + panel */}
+      <ChatFAB />
+
       {/* Main content area */}
       <Box
         className={`flex-1 min-h-0 z-10 ${currentView === "pageEditor" ? "relative flex flex-col" : `relative ${styles.workbenchScrollable}`}`}

frontend/editor/src/core/styles/zIndex.ts

@@ -8,6 +8,10 @@ export const Z_ANALYTICS_MODAL = 1301;
 export const Z_INDEX_CONFIG_MODAL = 1400;
 
 export const Z_INDEX_FILE_MANAGER_MODAL = 1200;
+
+// Chat FAB overlay — sits above normal app chrome (fullscreen surface: 1000)
+// but below all modals (automate: 1100, file manager: 1200, config: 1400).
+export const Z_INDEX_CHAT_FAB_OVERLAY = 1050;
 export const Z_INDEX_OVER_FILE_MANAGER_MODAL = 1300;
 
 export const Z_INDEX_AUTOMATE_MODAL = 1100;