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/Check Pending Registration.yml

@@ -0,0 +1,52 @@
+info:
+  name: Check Pending Registration
+  type: http
+  seq: 4
+
+http:
+  method: POST
+  url: '{{base_url}}/api/devices/register/status'
+  auth: none
+  headers:
+    - key: Content-Type
+      value: application/json
+  body:
+    type: json
+    json:
+      registration_id: registration-uuid-here
+
+docs: |-
+  ## Check Registration Status
+
+  Checks the current status of a device registration request.
+
+  **Method:** POST
+
+  **Endpoint:** /api/devices/register/status
+
+  **Authentication:** None
+
+  **Request Body:**
+  - `registration_id` (string): UUID received from registration request
+
+  **Response:**
+  - `registration_id` (string): The registration UUID
+  - `status` (string): Current status
+    - `pending`: Awaiting user approval
+    - `approved`: Registration approved, device ready
+    - `rejected`: Registration rejected by user
+    - `expired`: Registration expired (not approved in time)
+  - `device_name` (string): Name of the device
+  - `device_type` (string): Type of device
+  - `created_at` (string): Registration timestamp
+  - `updated_at` (string): Last status update timestamp
+
+  **Status Codes:**
+  - 200: Status retrieved successfully
+  - 404: Registration ID not found
+  - 400: Invalid registration ID format
+
+  **Polling Recommendations:**
+  - Poll every 5-10 seconds while status is `pending`
+  - Stop polling when status changes to `approved`, `rejected`, or `expired`
+  - Use exponential backoff for mobile devices to save battery