Policies tidying (#6587)

# Description of Changes
* Improve typing of API (breaking change but unreleased, frontend also
updated in this PR)
* Add ownership concept to policies
* De-AI the comments
* Update the `task dev:saas` rule to spawn the engine as well

Taskfile.yml

@@ -60,24 +60,20 @@ tasks:
 
   dev:saas:
     desc: "Start SaaS backend + frontend concurrently on free ports"
-    vars:
-      PORTS:
-        sh: '{{if eq OS "windows"}}{{.FIND_FREE_PORT_PS}} 8080 5173{{else}}{{.FIND_FREE_PORT_SH}} 8080 5173{{end}}'
-      BACKEND_PORT: '{{index (splitList "\n" .PORTS) 0}}'
-      FRONTEND_PORT: '{{index (splitList "\n" .PORTS) 1}}'
-    deps:
-      - task: backend:dev:saas
-        vars:
-          PORT: '{{.BACKEND_PORT}}'
-      - task: frontend:dev:saas
-        vars:
-          PORT: '{{.FRONTEND_PORT}}'
-          BACKEND_URL: 'http://localhost:{{.BACKEND_PORT}}'
-          OPEN: "true"
+    cmds:
+      - task: dev:_all
+        vars: { FRONTEND: saas, BACKEND: saas }
 
   dev:all:
     desc: "Start backend + frontend + engine concurrently on free ports"
+    cmds:
+      - task: dev:_all
+
+  dev:_all:
+    internal: true
     vars:
+      FRONTEND: '{{.FRONTEND | default "proprietary"}}'
+      BACKEND: '{{.BACKEND | default "proprietary"}}'
       PORTS:
         sh: '{{if eq OS "windows"}}{{.FIND_FREE_PORT_PS}} 8080 5173 5001{{else}}{{.FIND_FREE_PORT_SH}} 8080 5173 5001{{end}}'
       BACKEND_PORT: '{{index (splitList "\n" .PORTS) 0}}'
@@ -87,11 +83,11 @@ tasks:
       - task: engine:dev
         vars:
           PORT: '{{.ENGINE_PORT}}'
-      - task: backend:dev
+      - task: 'backend:dev:{{.BACKEND}}'
         vars:
           PORT: '{{.BACKEND_PORT}}'
           AIENGINE_URL: 'http://localhost:{{.ENGINE_PORT}}'
-      - task: frontend:dev
+      - task: 'frontend:dev:{{.FRONTEND}}'
         vars:
           PORT: '{{.FRONTEND_PORT}}'
           BACKEND_URL: 'http://localhost:{{.BACKEND_PORT}}'