Chore: unix tools tests

rag/rag_integration_test.go

@@ -54,6 +54,12 @@ func (d dummyStore) Recall(agent, topic string) (string, error)        { return
 func (d dummyStore) RecallTopics(agent string) ([]string, error)       { return nil, nil }
 func (d dummyStore) Forget(agent, topic string) error                  { return nil }
 
+// TableLister method
+func (d dummyStore) ListTables() ([]string, error) { return nil, nil }
+func (d dummyStore) GetTableColumns(table string) ([]storage.TableColumn, error) {
+	return nil, nil
+}
+
 // VectorRepo methods (not used but required by interface)
 func (d dummyStore) WriteVector(row *models.VectorRow) error { return nil }
 func (d dummyStore) SearchClosest(q []float32, limit int) ([]models.VectorRow, error) {