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/koreader/scenarios/Sync Progress - Single Book.yml

@@ -0,0 +1,92 @@
+info:
+  name: Sync Progress - Single Book
+  type: http
+  seq: 1
+
+http:
+  method: POST
+  url: '{{base_url}}/api/sync/koreader/progress'
+  auth: inherit
+  headers:
+    - key: Content-Type
+      value: application/json
+  body:
+    type: json
+    json:
+      library_id: optional-library-uuid
+      books:
+        - uuid: book-uuid-here
+          title: Book Title
+          authors:
+            - Author Name
+          progress: 0.45
+          percentage: 0.45
+          last_read: '2026-01-30T20:00:00Z'
+          chapter: 3
+          epubcfi: 'epubcfi(/6/4/2:15)'
+          character: 15432
+
+docs: |-
+  ## Sync KOReader Progress - Single Book
+
+  Synchronizes reading progress for a single book from KOReader device.
+
+  **Method:** POST
+
+  **Endpoint:** /api/sync/koreader/progress
+
+  **Authentication:** Bearer token (koreader_device_token)
+
+  **Request Body:**
+  - `library_id` (string, optional): Library UUID for multi-library setups
+  - `books` (array): Array with single book progress
+    - `uuid` (string): Unique book identifier (often SHA-256 hash)
+    - `title` (string): Book title
+    - `authors` (array): List of authors
+    - `progress` (number): Progress decimal (0.0 to 1.0)
+    - `percentage` (number): Progress percentage (0.45 = 45%)
+    - `last_read` (string): ISO 8601 timestamp of last read
+    - `chapter` (integer): Current chapter number
+    - `epubcfi` (string): EPUB Canonical Fragment Identifier
+    - `character` (integer): Character position in book
+    - `page` (integer, optional): Current page number
+
+  **Response:**
+  - `synced` (integer): Number of books synced
+  - `timestamp` (string): Server sync timestamp
+  - `books` (array): Sync results
+    - `uuid` (string): Book UUID
+    - `status` (string): `synced`, `updated`, `skipped`
+    - `server_progress` (object): Server-side progress data
+
+  **Status Codes:**
+  - 200: Success
+  - 401: Unauthorized
+  - 400: Invalid request format
+
+  **KOReader Progress Tracking:**
+  - SHA-256 based book identification (universal across devices)
+  - EPUB CFI for precise location (standard format)
+  - Chapter-based navigation
+  - Character-level precision
+  - Supports EPUB, FB2, PDF, DJVU, MOBI formats
+
+  **EPUB CFI Format:**
+  - Standardized location format for EPUBs
+  - Example: `epubcfi(/6/4/2:15)`
+  - Identifies exact position even after reflow
+  - Works across different devices/apps
+  - Preserved after file modifications
+
+  **Book Identification:**
+  - Primary: SHA-256 hash of book file
+  - Universal: Same book = same UUID across devices
+  - Format-agnostic: Works for any supported format
+  - Case-sensitive: Hash must match exactly
+
+  **Use Cases:**
+  - Real-time page turn sync
+  - Progress backup
+  - Cross-device continuity
+  - Reading time tracking
+  - Chapter completion detection