Implement Mika runtime sync and go-live controls

supabase/migrations/20260430121500_runtime_cronjob_observability.sql

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+-- ============================================================================
+-- FASE 5 — Observabilidade do runtime de cronjobs
+-- ============================================================================
+
+-- A UI e as Edge Functions já usam o estado "auto_paused", mas a migration
+-- original ainda não o aceitava no CHECK da coluna status.
+ALTER TABLE public.scheduled_jobs
+  DROP CONSTRAINT IF EXISTS scheduled_jobs_status_check;
+
+ALTER TABLE public.scheduled_jobs
+  ADD CONSTRAINT scheduled_jobs_status_check
+  CHECK (status IN ('active', 'paused', 'auto_paused', 'error', 'archived'));
+
+-- Espelha no Supabase o estado operacional retornado pelo runtime do Hermes.
+ALTER TABLE public.scheduled_jobs
+  ADD COLUMN IF NOT EXISTS runtime_state text
+    CHECK (runtime_state IS NULL OR runtime_state IN ('scheduled', 'paused', 'completed', 'error')),
+  ADD COLUMN IF NOT EXISTS runtime_last_status text
+    CHECK (runtime_last_status IS NULL OR runtime_last_status IN ('ok', 'error')),
+  ADD COLUMN IF NOT EXISTS runtime_last_error text,
+  ADD COLUMN IF NOT EXISTS runtime_last_delivery_error text,
+  ADD COLUMN IF NOT EXISTS runtime_synced_at timestamptz;
+
+CREATE INDEX IF NOT EXISTS idx_scheduled_jobs_agent_runtime_synced_at
+  ON public.scheduled_jobs (agent_instance_id, runtime_synced_at DESC NULLS LAST);