* feat(sync): implement KOReader progress synchronization
This commit introduces a comprehensive feature to synchronize reading progress with a KOReader sync server. It includes a compatibility layer to handle discrepancies between Readest's CFI-based progress and KOReader's XPointer/page-based progress, primarily using the `percentage` field as a common ground.
Key additions include:
- A new settings panel under "KOReader Sync" for server configuration, authentication, and sync strategy management (e.g., prompt on conflict, always use latest).
- A conflict resolution dialog that appears when remote progress differs significantly from local progress, allowing the user to choose which version to keep.
- A client-side `useKOSync` hook to manage the entire synchronization lifecycle, including API calls, state management, and conflict resolution logic.
- A new API endpoint `/api/kosync` that acts as a secure proxy to the user-configured KOReader sync server, handling authentication and forwarding requests.
- Logic to differentiate between paginated (PDF/CBZ) and reflowable (EPUB) formats, using page numbers for paginated files where possible and falling back to percentage for reliability.
- Spanish translations for all UI elements related to the KOReader sync feature.
- Addition of `uuid` package to generate a unique `device_id` for sync purposes.
Refactor:
- The `debounce` utility has been improved to include `flush` and `cancel` methods, allowing for more precise control over debounced function execution, which is now used in the sync hook.
* fix(kosync): add support for converting between XPointer and CFI in progress synchronization
* fix(kosync): update navigation method to use select instead of goTo for paginated formats
* fix(kosync): refactor synchronization settings and improve conflict resolution handling
* fix(kosync): add event dispatcher for flushing KOReader synchronization
* fix(sync): handle xpointer in a different section, fix styling
* i18n: update translations
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Co-authored-by: Huang Xin <chrox.huang@gmail.com>
* fix: footnote now should be hidden in srcdoc iframes
* fix: eliminate white flash on startup when using dark mode
* feat: rescale UI size with pixel density
To enable background playback in Android, go to Settings > Apps & Notifications > Readest > Battery > Battery Optimization, and disable battery optimization for Readest.
Huang Xin