Schedule Continuity Workflow

Use this skill for the schedule continuity feature across erify_api, erify_studios, and Google Sheets integration scripts.

Canonical Feature Docs

1. apps/erify_api/docs/SCHEDULE_CONTINUITY.md
2. apps/erify_api/docs/design/IMPLEMENTATION_CANCELLED_PENDING_RESOLUTION_GAP_MVP.md
3. apps/erify_studios/docs/design/DESIGN_FE_SCHEDULE_CONTINUITY_IMPLEMENTATION_PLAN.md

Baseline Behavior

1. Schedule flow is update -> validate -> publish.
2. Publish is identity-preserving diff+upsert (no delete-all/recreate path).
3. Removed shows with active tasks move to cancelled_pending_resolution.
4. Removed shows without active tasks move to cancelled.
5. Reappearing shows (matched by (client_id, external_id)) are restored in place.

Contract Language