refactor: extract gumbo schema migration to ArgoCD PreSync job

agents/gumbo/gumbo/temporal/activities.py

@@ -23,17 +23,7 @@ async def persist_gumbo_summary(payload: dict[str, Any]) -> None:
     conn = await psycopg.AsyncConnection.connect(dsn)
     try:
         async with conn.cursor() as cur:
-            await cur.execute(
-                """
-                CREATE TABLE IF NOT EXISTS gumbo_summaries (
-                  id bigserial PRIMARY KEY,
-                  workflow_id text NOT NULL,
-                  object_key text NOT NULL,
-                  summary text NOT NULL,
-                  created_at timestamptz NOT NULL DEFAULT now()
-                );
-                """
-            )
+
             await cur.execute(
                 """
                 INSERT INTO gumbo_summaries (workflow_id, object_key, summary)

agents/k8s/gumbo-schema-init.yaml

@@ -0,0 +1,35 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: gumbo-schema-init
+  namespace: ai-agents-gumbo
+  annotations:
+    argocd.argoproj.io/hook: PreSync
+    argocd.argoproj.io/hook-delete-policy: HookSucceeded
+spec:
+  template:
+    spec:
+      restartPolicy: OnFailure
+      containers:
+        - name: schema-init
+          image: postgres:16-alpine
+          command:
+            - sh
+            - -c
+            - |
+              psql "$PGURL" -c "
+              CREATE TABLE IF NOT EXISTS gumbo_summaries (
+                id bigserial PRIMARY KEY,
+                workflow_id text NOT NULL,
+                object_key text NOT NULL,
+                summary text NOT NULL,
+                created_at timestamptz NOT NULL DEFAULT now()
+              );"
+          env:
+            - name: PGURL
+              valueFrom:
+                secretKeyRef:
+                  name: gumbo-results-db
+                  key: dsn
+            - name: PGDATABASE
+              value: gumbo

agents/k8s/kustomization.yaml

@@ -4,3 +4,4 @@ resources:
   - gumbo-externalsecrets.yaml
   - gumbo-job-template.yaml
   - static-demo.yaml
+  - gumbo-schema-init.yaml