Save verified native IFC import and user validation evidence

Real IFC2X3/IFC4 import tested. Full BIM authoring/export remains out of scope; 349-second building import performance remains to optimize.

web/src/web-open-adapter.ts

@@ -83,6 +83,7 @@ export async function executeOpenDocument(router: WebModuleRouter, args: Record<
         }, value.activeDocument);
         if (scene.kind === "error") throw new Error(scene.error.message);
         if ((scene.result as DocumentViewResult).documentId !== value.activeDocument) throw new Error("Opened document scene identity mismatch");
+        value.scene = scene.result as DocumentViewResult;
         window.dispatchEvent(new CustomEvent("freecad-document-view", { detail: { owner, documentId: value.activeDocument, value: scene.result } }));
       } catch (error) { value.sceneError = String(error); }
     }

web/src/web-open-contract.ts

@@ -1,3 +1,4 @@
+import type { DocumentViewResult } from "./part-view-facade.js";
 export interface OpenFileEntry { filename: string; fileData: string; module?: string }
 export interface OpenResult {
   command: "Std_Open"; documentId: string; operation: "list" | "open"; activeDocument: string | null;
@@ -7,6 +8,7 @@ export interface OpenResult {
   errors: Array<{ filename: string; message: string }>;
   storedFiles?: Array<{ key: string; filename: string }>;
   sceneError?: string;
+  scene?: DocumentViewResult;
 }
 export function validOpenResult(value: unknown, documentId: string): value is OpenResult {
   const r = value as OpenResult | null;

web/src/web-view-task.tsx

@@ -13,10 +13,11 @@ type ViewResult = {
   annotations?: NativeAnnotation[];
 };
 
-export function WebViewTask({ router, command, documentId, selection, onSelection, runtimeOwner, disabled = false }: {
+export function WebViewTask({ router, command, documentId, selection, onSelection, runtimeOwner, initialScene, disabled = false }: {
   router: WebModuleRouter; command: string; documentId: string; selection: Selection[];
   onSelection: (documentId: string, selection: Selection[]) => void;
   runtimeOwner?: ViewOwner; disabled?: boolean;
+  initialScene?: ViewResult;
 }) {
   const host = useRef<HTMLDivElement>(null);
   const projection = useRef<number[]>([]);
@@ -55,9 +56,9 @@ export function WebViewTask({ router, command, documentId, selection, onSelectio
     return () => window.removeEventListener("freecad-document-view", receive);
   }, [documentId, owner]);
 
-  useEffect(() => { current.current = `${owner}:${documentId}`; setValue(undefined); setError(""); projection.current = []; setDrag(undefined);
+  useEffect(() => { current.current = `${owner}:${documentId}`; setValue(initialScene?.documentId === documentId ? initialScene : undefined); setError(""); projection.current = []; setDrag(undefined);
     return () => { current.current = ""; };
-  }, [documentId, owner]);
+  }, [documentId, owner, initialScene]);
 
   async function execute(name: string, args: Record<string, unknown> = {}) {
     if (busy || disabled) return;
@@ -78,8 +79,8 @@ export function WebViewTask({ router, command, documentId, selection, onSelectio
   }
 
   useEffect(() => {
-    if (command === "Std_SceneInspector" && !disabled) void execute("Std_DrawStyle", { action: "read" });
-  }, [command, documentId, owner, disabled]);
+    if (command === "Std_SceneInspector" && !disabled && initialScene?.documentId !== documentId) void execute("Std_DrawStyle", { action: "read" });
+  }, [command, documentId, owner, disabled, initialScene]);
 
   useEffect(() => {
     const node = host.current;
@@ -222,7 +223,8 @@ export function WebViewTask({ router, command, documentId, selection, onSelectio
       </>}
     </div>
     {error && <pre role="alert" style={{ whiteSpace: "pre-wrap", overflowWrap: "anywhere" }}>{error}</pre>}
-    <div ref={host} style={{ position: "relative", width: "100%", height: 420, maxHeight: "65vh", touchAction: "none" }}
+    <div ref={host} data-native-mesh-count={value?.meshes.length ?? 0}
+      style={{ position: "relative", width: "100%", height: 420, maxHeight: "65vh", touchAction: "none" }}
       onPointerDown={event => {
         if (!isBox || busy || disabled || !value || event.button !== 0) return;
         const rect = event.currentTarget.getBoundingClientRect();

web/src/workbench-shell.tsx

@@ -1155,6 +1155,16 @@ function App() {
     <style>{css}</style>
     {(module === "Web" || module === "Std") && command?.replace(/^(Web|Std):desktop:/, "") === "Std_Open" &&
       <WebOpenTask response={response} busy={busy} execute={values => { void run(undefined, values); }} />}
+    {(module === "Web" || module === "Std") && command?.replace(/^(Web|Std):desktop:/, "") === "Std_Open"
+      && response?.kind === "result" && (() => {
+        const batch = response.result as { owner?: "PartBox" | "DocumentProbe"; records?: Array<{ name?: string; result?: { activeDocument?: string; opened?: unknown[]; scene?: import("./part-view-facade.js").DocumentViewResult } }> };
+        const opened = batch.records?.find(row => row.name === "Std_Open")?.result;
+        return opened?.activeDocument && opened.opened?.length && WebViewTask ? <WebViewTask router={router}
+          command="Std_SceneInspector" documentId={opened.activeDocument} runtimeOwner={batch.owner ?? "PartBox"}
+          initialScene={opened.scene}
+          disabled={busy} selection={documentSelection.selection}
+          onSelection={(documentId, selection) => setDocumentSelection({ documentId, selection })} /> : null;
+      })()}
     {module === "BIM" && command?.replace(/^BIM:desktop:/, "") === "BIM_Windows" &&
       <BimWindowsTask key={documentSelection.documentId} documentId={documentSelection.documentId}
         response={response} busy={busy} execute={values => { void run(undefined, values); }}