docs: "## Sync Progress with Bookmarks\n\nSynchronizes reading progress with bookmarks/highlights from KOReader.\n\n**Method:** POST\n\n**Endpoint:** /api/sync/koreader/progress\n\n**Authentication:** Bearer token\n\n**Request Body:**\n- `library_id` (string, optional): Library UUID\n- `books` (array): Books with progress and bookmarks\n  - `uuid`, `title`, `authors`, `progress`, etc.\n  - `bookmarks` (array): Bookmark items\n    - `chapter` (integer): Chapter number\n    - `datetime` (string): ISO 8601 timestamp\n    - `notes` (string): Note content or highlighted text\n    - `pos0` (string): EPUB CFI start position\n    - `pos1` (string): EPUB CFI end position\n    - `page` (integer): Page number\n    - `text` (string): Displayed text excerpt\n    - `type` (string): `highlight`, `bookmark`, or `note`\n\n**Response:**\n- `progress_synced` (integer): Progress items synced\n- `bookmarks_synced` (integer): Bookmark items synced\n- `highlights_synced` (integer): Highlight count\n- `timestamp`\
  \ (string): Sync timestamp\n\n**KOReader Bookmark Types:**\n- **highlight**: Selected text passages\n- **bookmark**: Location markers\n- **note**: Text annotations (can be attached to highlights)\n\n**KOReader Highlight Features:**\n- Custom colors (via color extensions)\n- Multi-color support\n- Precise EPUB CFI positioning\n- Chapter-based organization\n- Text excerpts preserved\n- Date/time stamped\n- Page number tracking\n\n**EPUB CFI in Bookmarks:**\n- `pos0`: Start position (highlight start)\n- `pos1`: End position (highlight end)\n- Exact text selection boundaries\n- Survives text reflow\n- Works across different font sizes\n\n**Sync Behavior:**\n- Duplicate detection by text + position\n- Most recent edit wins\n- Chapter references maintained\n- Order preserved from device\n- Merges with existing server bookmarks\n\n**KOReader Device Integration:**\n- Created in KOReader highlight interface\n- Shows in \"Bookmarks\" menu\n- Can be edited/deleted on device\n- Exportable to JSON/XML\n\
  - Searchable by content\n\n**Use Cases:**\n- Study and research\n- Content review\n- Passage tracking\n- Quick navigation\n- Cross-device bookmark access"
http:
  body:
    json:
      books:
      - authors:
        - Author Name
        bookmarks:
        - chapter: 3
          datetime: '2026-01-30T19:55:00Z'
          notes: highlighted text
          page: 45
          pos0: epubcfi(/6/4/2:15)
          pos1: epubcfi(/6/4/2:20)
          text: highlighted text excerpt
          type: highlight
        last_read: '2026-01-30T20:00:00Z'
        percentage: 0.45
        progress: 0.45
        title: Book Title
        uuid: '{{media_item_id}}'
      library_id: optional-library-uuid
    type: json
  headers:
  - key: Content-Type
    value: application/json
  method: POST
  url: '{{base_url}}/api/sync/koreader/progress'
  auth:
    type: bearer
    token: '{{koreader_device_token}}'
info:
  name: Sync Progress - With Bookmarks
  seq: 3
  type: http