fix(db): 補齊 action_plans schema drift

tests/test_database_manager_cache.py

@@ -59,3 +59,22 @@ def test_database_manager_uses_bounded_postgres_pool(monkeypatch):
     assert db.engine is captured["session_bind"]
 
     DatabaseManager._instance_cache.clear()
+
+
+def test_postgres_schema_repair_adds_action_plan_group_a_columns():
+    from database.manager import _repair_postgres_schema_drift
+
+    captured = []
+
+    class FakeConnection:
+        def execute(self, statement):
+            captured.append(str(statement))
+
+    _repair_postgres_schema_drift(FakeConnection())
+    ddl = "\n".join(captured)
+
+    assert "ADD COLUMN IF NOT EXISTS action_type VARCHAR(100)" in ddl
+    assert "ADD COLUMN IF NOT EXISTS description TEXT" in ddl
+    assert "ADD COLUMN IF NOT EXISTS priority INTEGER DEFAULT 3" in ddl
+    assert "ADD COLUMN IF NOT EXISTS metadata_json TEXT" in ddl
+    assert "CREATE INDEX IF NOT EXISTS idx_action_plans_type" in ddl