refactor(bruno): reorganize file structure from bruno-yaml to flat bruno directory

- Move all files from bruno-yaml/* to bruno/*
- Maintains existing directory structure within categories
- Updates bruno/user/auth files with OAuth2 refresh token flow
- Updates bruno/user/profile files for user profile management
- Adds bruno/dashboard/ directory with dashboard API tests
- Preserves all existing test scenarios and OpenCollection YAML format
- No functional changes - file reorganization only

bruno/media-items/Update Media Rating.yml

@@ -0,0 +1,53 @@
+info:
+  name: Update Media Rating
+  type: http
+  seq: 1
+http:
+  method: PUT
+  url: '{{base_url}}/api/media-items/{{media_item_id}}/rating'
+  auth: inherit
+  body:
+    type: json
+    jsonBody: "{\n    \"rating\": 4,\n    \"review\": \"Great book! Very enjoyable\
+      \ read.\""
+  headers:
+  - key: Content-Type
+    value: application/json
+runtime:
+  scripts:
+  - type: tests
+    code: "test_update_media_rating_success(status, headers, body) {\n    if (status\
+      \ !== 200) {\n      throw new Error(\"Expected status 200, got \" + status);"
+
+docs: |-
+  ## Update Media Rating
+  
+    Updates an existing rating for a media item.
+  
+    **Method:** PUT
+  
+    **Endpoint:** /api/media-items/:id/rating
+  
+    **Authentication:** Required (Bearer token)
+  
+    **Path Parameters:**
+    - `id` (string, required): Media item UUID
+  
+    **Request Body:**
+    - `rating` (number, required): Rating value (typically 1-5)
+    - `review` (string, optional): Review text
+  
+    **Response:** Updated rating object
+    - `id` (string): Rating ID
+    - `media_item_id` (string): Media item UUID
+    - `rating` (number): Rating value
+    - `review` (string): Review text
+    - `created_at` (string): Creation timestamp
+    - `updated_at` (string): Last update timestamp
+  
+    **Status Codes:**
+    - 200: Success
+    - 400: Invalid request body
+    - 401: Unauthorized
+    - 404: Media item or rating not found
+    - 500: Internal server error