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/regenerate-token.yml

@@ -0,0 +1,19 @@
+info:
+  name: Regenerate Device Token
+  type: http
+  seq: 1
+http:
+  method: PUT
+  url: '{{base_url}}/api/devices/{{device_id}}/regenerate-token'
+  auth: inherit
+  body:
+    type: none
+
+docs: |-
+  ## Regenerate Device Token
+  
+    Regenerates auth token for a device, invalidating old token immediately.
+  
+    **Method:** PUT
+  
+    **Endpoint:** /api/devices/{device_id