Trigger runner_progress.updated_at on UPDATE

Author: atharvas

supabase/migrations/00014_runner_progress_updated_at_trigger.sql

@@ -0,0 +1,20 @@
+-- Ensure runner_progress.updated_at is bumped on every UPDATE.
+-- Without this, upserts from BaseRunner only refresh total/completed/failed
+-- and updated_at stays pinned at the INSERT default, making it impossible
+-- to distinguish live runs from zombies via timestamp.
+
+CREATE OR REPLACE FUNCTION set_updated_at()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+BEGIN
+    NEW.updated_at = now();
+    RETURN NEW;
+END;
+$$;
+
+DROP TRIGGER IF EXISTS runner_progress_set_updated_at ON runner_progress;
+CREATE TRIGGER runner_progress_set_updated_at
+    BEFORE UPDATE ON runner_progress
+    FOR EACH ROW
+    EXECUTE FUNCTION set_updated_at();