Reorganize app workspaces and align Admin architecture

docs/devtools/module-generator/backend.md

@@ -4,7 +4,7 @@ The backend generator exposes authenticated schema-inspection and generation end
 
 ## Endpoints
 
-Routes are registered in `backend/start/routes.ts`.
+Routes are registered in `apps/backend/start/routes.ts`.
 
 | Method | Path                         | Controller method | Purpose                                            |
 | ------ | ---------------------------- | ----------------- | -------------------------------------------------- |
@@ -16,7 +16,7 @@ All three endpoints use `middleware.auth()`.
 
 ## Database Inspection
 
-`backend/app/services/database_inspector.ts` reads PostgreSQL `information_schema`.
+`apps/backend/app/services/database_inspector.ts` reads PostgreSQL `information_schema`.
 
 - Table discovery is limited to the `public` schema.
 - framework, authentication, access-control, migration, and PostgreSQL system tables are excluded.
@@ -45,7 +45,7 @@ Nullable database columns receive `| null` in generated model/entity types and o
 For module name `<name>`, table `<table>`, and derived module class `<ModuleName>`, selected assets are written under:
 
 ```txt
-backend/modules/<ModuleName>/
+apps/backend/modules/<ModuleName>/
 ├── api/
 │   ├── controllers/<entity>_api_controller.ts
 │   ├── validators/<entity>_create_api_validator.ts
@@ -63,7 +63,7 @@ backend/modules/<ModuleName>/
 Tests are written under:
 
 ```txt
-backend/tests/modules/<ModuleName>/
+apps/backend/tests/modules/<ModuleName>/
 ├── <entity>.spec.ts
 └── <entity>.api.spec.ts
 ```
@@ -74,7 +74,7 @@ backend/tests/modules/<ModuleName>/
 
 ### Model
 
-Renders `backend/app/templates/backend/model.hbs` with columns, inferred relationships, searchable fields, and optional password hashing.
+Renders `apps/backend/app/templates/backend/model.hbs` with columns, inferred relationships, searchable fields, and optional password hashing.
 
 ### Controller and routes
 
@@ -86,7 +86,7 @@ Creates separate create and update Vine validators. Primary keys and timestamp/d
 
 ### Policy and permissions
 
-Creates a Bouncer policy with view/create/update/delete checks, creates `config/permissions.ts`, and adds a lazy policy import to `backend/app/policies/main.ts` when missing.
+Creates a Bouncer policy with view/create/update/delete checks, creates `config/permissions.ts`, and adds a lazy policy import to `apps/backend/app/policies/main.ts` when missing.
 
 Permission slugs are derived from the module name, for example:
 
@@ -123,7 +123,7 @@ The controller registers Handlebars helpers for `eq`, `not`, `or`, and `and`. Ne
 
 ## Extending the Backend Generator
 
-1. Add or update a Handlebars template under `backend/app/templates/`.
+1. Add or update a Handlebars template under `apps/backend/app/templates/`.
 2. Add an explicit destination path in the controller `paths` object.
 3. Create its parent directory through the existing path initialization.
 4. Render only when the corresponding asset is selected.