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/progress/Delete Reading Progress.yml

@@ -0,0 +1,42 @@
+info:
+  name: Delete Reading Progress
+  type: http
+  seq: 1
+http:
+  method: DELETE
+  url: '{{base_url}}/api/media-items/{{media_item_id}}/progress'
+  auth: inherit
+  headers:
+  - key: Content-Type
+    value: application/json
+runtime:
+  scripts:
+  - type: tests
+    code: "test_delete_reading_progress_success(status, headers, body) {\n    if (status\
+      \ !== 200 && status !== 204) {\n      throw new Error(\"Expected status 200\
+      \ or 204, got \" + status);"
+
+docs: |-
+  ## Delete Reading Progress
+  
+    Deletes reading progress for a media item. This is a legacy endpoint - consider using universal progress endpoints instead.
+  
+    **Method:** DELETE
+  
+    **Endpoint:** /api/media-items/:id/progress
+  
+    **Authentication:** Required (Bearer token)
+  
+    **Path Parameters:**
+    - `id` (string, required): Media item UUID
+  
+    **Response:** Success message or empty
+  
+    **Status Codes:**
+    - 200: Success
+    - 204: Success (no content)
+    - 401: Unauthorized
+    - 404: Media item not found
+    - 500: Internal server error
+  
+    **Note:** This is a legacy endpoint. Use `/api/progress/:id` endpoints for new implementations.

bruno/progress/Get Reading Progress.yml

@@ -0,0 +1,30 @@
+info:
+  name: Get Reading Progress
+  type: http
+  seq: 6
+http:
+  method: GET
+  url: '{{base_url}}/api/media-items/{{media_item_id}}/progress'
+  auth: inherit
+  body:
+    type: none
+
+docs: |-
+  ## Get Reading Progress
+    
+    Retrieves the authenticated user's reading progress for a media item.
+    
+    **Authentication:** Required (Bearer token)
+    
+    **Path Parameters:**
+     - `id` (string): Media Item UUID
+    
+    **Response:**
+    - `id` (string): Media Item UUID
+    - `user_id` (string): User UUID
+    - `current_page` (number): Current page number
+    - `total_pages` (number, nullable): Total pages
+    - `last_read_at` (string): Last read timestamp
+    
+    **Error Responses:**
+    - 401: Invalid authentication

bruno/progress/Update Reading Progress.yml

@@ -0,0 +1,31 @@
+info:
+  name: Update Reading Progress
+  type: http
+  seq: 7
+http:
+  method: PUT
+  url: '{{base_url}}/api/media-items/{{media_item_id}}/progress'
+  auth: inherit
+  body:
+    type: json
+    jsonBody: "{\n    \"current_page\": 45,\n    \"total_pages\": 200"
+
+docs: |-
+  ## Update Reading Progress
+    
+    Updates the authenticated user's reading progress for a media item.
+    
+    **Authentication:** Required (Bearer token)
+    
+    **Path Parameters:**
+    - `id` (string): Media Item UUID
+    
+    **Request Body:**
+    - `current_page` (number, required): Current page number
+    - `total_pages` (number, optional): Total pages in book
+    
+    **Response:** Updated progress object
+    
+    **Error Responses:**
+    - 401: Invalid authentication
+    - 400: Invalid request data