feat: create Bruno requests for library system API

- Add library management requests (CRUD operations)
- Create media items API requests for library content
- Implement library visibility controls
- Add user library access management
- Update deprecated ebook folder endpoints with migration guide
- Include comprehensive documentation and test cases
- Replace collection.bru with proper dashboard request

Complete Bruno collection supporting new multi-library architecture

bruno/admin/Get Ebook Folders.bru

@@ -16,31 +16,29 @@ settings {
 }
 
 docs {
-  ## Get Ebook Folders
+  ## Get Ebook Folders - DEPRECATED
   
-  Retrieves all ebook folders configured for the authenticated user.
+  ⚠️ **This endpoint is deprecated and will return HTTP 410 Gone.**
   
-  **Method:** GET
+  **Use the new library system instead:**
+  - Use `/api/libraries` to manage libraries
+  - Use `/api/libraries/{id}/folders` to manage library folders
   
-  **Endpoint:** /api/auth/ebook-folders
+  **Migration Path:**
+  1. Create a library of type "ebooks"
+  2. Add your ebook folders to that library
+  3. Use library visibility controls instead of user-specific folders
   
-  **Authentication:** Required (Admin only)
-  
-  **Response:** Array of folder objects with:
-  - `id` (string): Folder ID (UUID)
-  - `user_id` (string): User ID (UUID)
-  - `folder_path` (string): Normalized folder path
-  - `created_at` (string): Creation timestamp (ISO 8601)
+  **Response:** HTTP 410 Gone with deprecation message
   
   **Status Codes:**
-  - 200: Success (empty array if no folders found)
+  - 410: Gone (endpoint deprecated)
   - 401: Unauthorized
   - 403: Forbidden (admin access required)
-  - 500: Internal server error
   
-  **Features:**
-  - Admin-only endpoint for retrieving configured folders
-  - Returns all folders configured for the user
-  - Useful for folder management interfaces
-  - Empty array returned if no folders configured
+  **Replacement Endpoints:**
+  - `GET /api/libraries` - List all libraries (admin)
+  - `GET /api/libraries/visible` - List user's visible libraries
+  - `POST /api/libraries` - Create new library
+  - `POST /api/libraries/{id}/folders` - Add folder to library
 }