SubMiner/backlog/tasks/task-29.2 - Implement-AniList-retry-backoff-queue-for-failed-post-watch-updates.md

id, title, status, assignee, created_date, updated_date, labels, dependencies, parent_task_id, priority

id	title	status	assignee	created_date	updated_date	labels	dependencies	parent_task_id	priority
TASK-29.2	Implement AniList retry/backoff queue for failed post-watch updates	Done		2026-02-17 04:13	2026-02-17 04:19	anilist reliability queue		TASK-29	medium

Acceptance Criteria

• #1 Failed AniList mutations are enqueued with retry metadata and exponential backoff.
• #2 Transient API/network failures retry automatically without blocking playback.
• #3 Queue is idempotent per media+episode update key and survives app restarts.
• #4 Permanent failures surface clear diagnostics and dead-letter state.

Implementation Notes

Implemented persistent AniList retry queue with exponential backoff, dead-lettering after max attempts, queue snapshot state wiring, and retry processing integrated into playback-triggered AniList update flow.

Definition of Done

• #1 Queue service integrated into AniList post-watch update path.
• #2 Backoff/retry behavior covered by unit tests.