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/highlights/Update Media Highlight.yml

@@ -0,0 +1,42 @@
+info:
+  name: Update Media Highlight
+  type: http
+  seq: 4
+http:
+  method: PUT
+  url: '{{base_url}}/api/media-items/{{media_item_id}}/highlights/{{highlight_id}}'
+  auth: inherit
+  body:
+    type: json
+    jsonBody: "{\n    \"selection_text\": \"This is the updated highlighted text.\"\
+      ,\n    \"start_position\": \"page:45:offset:125\",\n    \"end_position\": \"\
+      page:45:offset:150\",\n    \"color\": \"#ffeb3b\",\n    \"note_id\": \"\""
+
+docs: |-
+  ## Update Media Highlight
+    
+    Updates an existing highlight.
+    
+    **Method:** PUT
+    
+    **Endpoint:** /api/media-items/:id/highlights/:highlightId
+    
+    **Path Parameters:**
+    - `id` (string): Media item ID
+    - `highlightId` (string): Highlight ID
+    
+    **Request Body:**
+    - `selection_text` (string): Updated highlighted text (required, 1-5000 chars)
+    - `start_position` (string): Updated start position (required, max 100 chars)
+    - `end_position` (string): Updated end position (required, max 100 chars)
+    - `color` (string): Updated highlight color in hex format (optional)
+    - `note_id` (string): Updated associated note ID (optional)
+    
+    **Response:**
+    - Updated highlight object with all fields
+    
+    **Status Codes:**
+    - 200: Success
+    - 400: Invalid request
+    - 401: Unauthorized
+    - 404: Highlight not found