Push reading statuses (PLANNING/CURRENT/COMPLETED) to AniList for all
linked series that changed since last sync, or have new books/no sync yet.
- Migration 0057: adds reading_status_push to index_jobs type constraint
- Migration 0058: creates reading_status_push_results table (pushed/skipped/no_books/error)
- API: new reading_status_push module with start_push, get_push_report, get_push_results
- Differential detection: synced_at IS NULL OR reading progress updated OR new books added
- Same 429 retry logic as reading_status_match (wait 10s, retry once, abort on 2nd 429)
- Notifications: ReadingStatusPushCompleted/Failed events
- Backoffice: push button in reading status group, job detail report with per-series list
- Replay support, badge label, i18n (FR + EN)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Froidefond Julien
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