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/user/profile/Update Profile.yml

@@ -0,0 +1,34 @@
+info:
+  name: Update Profile
+  type: http
+  seq: 4
+http:
+  method: PUT
+  url: '{{base_url}}/api/auth/profile'
+  auth: inherit
+  body:
+    type: json
+    jsonBody: "{\n    \"first_name\": \"Updated\",\n    \"last_name\": \"Name\""
+
+docs: |-
+  ## Update User Profile
+    
+    Updates the authenticated user's profile information.
+    
+    **Method:** PUT
+    
+    **Endpoint:** /api/auth/profile
+    
+    **Authentication:** Required (Bearer token)
+    
+    **Request Body:**
+    - `first_name` (string, optional): First name
+    - `last_name` (string, optional): Last name
+    
+    **Response:**
+    - `message` (string): Success message
+    
+    **Status Codes:**
+    - 200: Success
+    - 400: Invalid request
+    - 401: Unauthorized