Add schedule smoke test routine

docs/runbook.md

@@ -129,6 +129,24 @@ This reconciles all Temporal Schedules with the `activity_definitions` table:
 - Creates paused schedules for disabled cron definitions
 - Deletes orphaned schedules with no matching DB row
 
+After adding or changing a recurring ActivityDefinition or workflow activity
+wiring, run a smoke schedule before trusting the next real fire:
+
+```bash
+ACTCORE_DB_URL=postgresql+asyncpg://actcore:actcore@localhost:5433/actcore \
+TEMPORAL_HOST=localhost:7233 \
+  uv run python scripts/smoke_test_schedule.py \
+    --activity-id <activity-definition-uuid> \
+    --recreate-recurring
+```
+
+The smoke command deletes and recreates the recurring Temporal Schedule when
+`--recreate-recurring` is set, creates a distinct one-shot smoke Schedule one
+minute in the future, waits for the smoke workflow to complete, and exits
+non-zero if the workflow fails or times out. Use this after worker deployments
+that add workflow imports or new activities; it catches stale-worker and missing
+activity registration issues before the next scheduled run.
+
 ---
 
 ## Temporal UI — filtering by activity