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/Create Media Highlight.yml

@@ -0,0 +1,41 @@
+info:
+  name: Create Media Highlight
+  type: http
+  seq: 2
+http:
+  method: POST
+  url: '{{base_url}}/api/media-items/{{media_item_id}}/highlights'
+  auth: inherit
+  body:
+    type: json
+    jsonBody: "{\n    \"selection_text\": \"This is the highlighted text from the\
+      \ media item.\",\n    \"start_position\": \"page:45:offset:120\",\n    \"end_position\"\
+      : \"page:45:offset:145\",\n    \"color\": \"#ffff00\",\n    \"note_id\": \"\""
+
+docs: |-
+  ## Create Media Highlight
+    
+    Creates a new highlight for a specific media item.
+    
+    **Method:** POST
+    
+    **Endpoint:** /api/media-items/:id/highlights
+    
+    **Path Parameters:**
+    - `id` (string): Media item ID
+    
+    **Request Body:**
+    - `selection_text` (string): Highlighted text (required, 1-5000 chars)
+    - `start_position` (string): Start position (required, max 100 chars)
+    - `end_position` (string): End position (required, max 100 chars)
+    - `color` (string): Highlight color in hex format (optional, default #ffff00)
+    - `note_id` (string): Optional associated note ID
+    
+    **Response:**
+    - Highlight object with all fields including generated ID and timestamps
+    
+    **Status Codes:**
+    - 201: Created
+    - 400: Invalid request
+    - 401: Unauthorized
+    - 404: Media item not found