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/universal-progress/Get Universal Progress.yml

@@ -0,0 +1,22 @@
+info:
+  name: Get Universal Progress
+  type: http
+  seq: 1
+http:
+  method: GET
+  url: '{{base_url}}/api/progress/{{mediaItemId}}'
+  auth: inherit
+  body:
+    type: none
+  headers:
+  - key: Authorization
+    value: Bearer {{jwt
+
+docs: |-
+  ## Get Universal Progress
+  
+    Retrieves universal reading progress for a specific media item across all devices.
+  
+    **Method:** GET
+  
+    **Endpoint:** /api/progress/{mediaItemId