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/library/Get Scan Settings.yml

@@ -0,0 +1,37 @@
+info:
+  name: Get Scan Settings
+  type: http
+  seq: 2
+http:
+  method: GET
+  url: '{{base_url}}/api/library/scan-settings'
+  auth: inherit
+  body:
+    type: none
+  headers:
+  - key: Content-Type
+    value: application/json
+
+docs: |-
+  ## Get Scan Settings
+    
+    Retrieves the user's current library scanning settings.
+    
+    **Method:** GET
+    
+    **Endpoint:** /api/library/scan-settings
+    
+    **Authentication:** Required (Bearer token)
+    
+    **Response:**
+    - `scan_frequency_minutes` (number): Minutes between automatic scans (minimum 1)
+    - `auto_scan_enabled` (boolean): Whether automatic scanning is enabled
+    - `last_scan_at` (string, optional): Timestamp of last scan
+    - `next_scan_at` (string, optional): Timestamp of next scheduled scan
+    - `library_id` (string, optional): Library ID for context
+    
+    **Status Codes:**
+    - 200: Success
+    - 401: Unauthorized
+    - 403: Forbidden (access denied)
+    - 500: Internal server error