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/queue/scenarios/Get Device Queue Stats.yml

@@ -0,0 +1,41 @@
+info:
+  name: Get Device Queue Stats
+  type: http
+  seq: 2
+http:
+  method: GET
+  url: '{{base_url}}/api/queue/devices/{{device_id}}/stats'
+  auth: inherit
+  body:
+    type: none
+
+docs: |-
+  ## Get Device Queue Stats
+  
+    Retrieves statistics for a specific device's sync queue.
+  
+    **Method:** GET
+  
+    **Endpoint:** /api/queue/devices/:device_id/stats
+  
+    **Authentication:** Bearer token
+  
+    **Path Parameters:**
+     - `device_id` (string): Device UUID
+  
+    **Response:**
+     - Queue statistics including pending, completed, and failed counts
+  
+    **Status Codes:**
+     - 200: Success
+     - 401: Unauthorized
+     - 404: Device not found
+  
+    **Example Response:**
+     ```json
+     {
+       "device_id": "uuid",
+       "total_items": 10,
+       "pending": 3,
+       "completed": 5,
+       "failed": 2