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/devices/scenarios/Get Device.yml

@@ -0,0 +1,45 @@
+info:
+  name: Get Device Details
+  type: http
+  seq: 6
+
+http:
+  method: GET
+  url: '{{base_url}}/api/devices/{{device_id}}'
+  auth: inherit
+
+docs: |-
+  ## Get Device Details
+
+  Retrieves detailed information about a specific device.
+
+  **Method:** GET
+
+  **Endpoint:** /api/devices/:device_id
+
+  **Authentication:** Required (Bearer token)
+
+  **Path Parameters:**
+  - `device_id` (string): UUID of the device
+
+  **Response:**
+  - `id` (string): Device UUID
+  - `device_name` (string): Device name
+  - `device_type` (string): `kobo`, `koreader`, or `web`
+  - `device_identifier` (string): Unique identifier
+  - `sync_enabled` (boolean): Sync status
+  - `auto_sync` (boolean): Auto-sync setting
+  - `sync_frequency_minutes` (integer): Sync interval
+  - `last_synced_at` (string): Last sync timestamp
+  - `sync_stats` (object): Sync statistics
+    - `total_syncs` (integer): Number of successful syncs
+    - `last_sync_status` (string): Status of last sync
+    - `bytes_synced` (integer): Total data transferred
+  - `created_at` (string): Registration timestamp
+  - `updated_at` (string): Last update timestamp
+
+  **Status Codes:**
+  - 200: Success
+  - 401: Unauthorized
+  - 403: Forbidden (device belongs to different user)
+  - 404: Device not found