Slack polling and thread expansion exist, but realtime events are not active; Notion currently full-refetches and only extracts first-level blocks.
Acceptance criteria:
- Slack Events API/webhook ingestion is implemented and reconciles with polling.
- Notion supports recursive block expansion and better change detection.
- Add connector-specific tests for update, delete, and reprocess correctness.
Slack polling and thread expansion exist, but realtime events are not active; Notion currently full-refetches and only extracts first-level blocks.
Acceptance criteria: