Add governed Dataflow search source

webui/src/features/dataflow/DataflowPage.tsx

@@ -43,6 +43,7 @@ import {
   type AuthInfo
 } from "@govoplan/core-webui";
 import { ReactFlowProvider } from "@xyflow/react";
+import { useLocation } from "react-router-dom";
 import {
   compileDataflowSql,
   createDataflowTrigger,
@@ -99,6 +100,11 @@ const AUTO_PREVIEW_STORAGE_KEY = "govoplan.dataflow.auto-preview";
 
 export default function DataflowPage({ settings, auth }: { settings: ApiSettings; auth: AuthInfo }) {
   const { requestNavigation, requestDiscard } = useUnsavedChanges();
+  const location = useLocation();
+  const requestedPipelineId = useMemo(
+    () => new URLSearchParams(location.search).get("pipelineId"),
+    [location.search]
+  );
   const [pipelines, setPipelines] = useState<Pipeline[]>([]);
   const [draft, setDraft] = useState<PipelineDraft | null>(null);
   const [savedDraft, setSavedDraft] = useState<PipelineDraft | null>(null);
@@ -219,8 +225,8 @@ export default function DataflowPage({ settings, auth }: { settings: ApiSettings
   }, [draft?.id, settings]);
 
   useEffect(() => {
-    void loadPipelines();
-  }, []);
+    void loadPipelines(requestedPipelineId);
+  }, [requestedPipelineId]);
 
   useEffect(() => {
     let cancelled = false;