- EventProcessor now recovers stuck "processing" activities back to
"pending" after 5 minutes (handles process crashes)
- New ap_delivery_log table records successful inbox deliveries
- Federation delivery handler checks the log before sending, so
retries skip already-delivered inboxes
- Together these give at-least-once + idempotent semantics
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
