Add project overview import

src/frontend/utils/api.ts

@@ -64,7 +64,15 @@ async function request<T>(url: string, init?: RequestInit): Promise<T> {
   });
 
   if (!response.ok) {
-    const details = await response.text();
+    let details = await response.text();
+    try {
+      const parsed = JSON.parse(details) as { error?: unknown };
+      if (typeof parsed.error === "string") {
+        details = parsed.error;
+      }
+    } catch {
+      // Keep non-JSON error responses unchanged.
+    }
     throw new Error(details || `Anfrage fehlgeschlagen (Status ${response.status})`);
   }
 
@@ -233,6 +241,16 @@ export function exportProjectTransfer(projectId: string) {
   return request<unknown>(`/api/projects/${projectId}/export`);
 }
 
+export function importProjectTransferAsNew(transfer: unknown) {
+  return request<{ projectId: string; name: string }>(
+    "/api/projects/import",
+    {
+      method: "POST",
+      body: JSON.stringify({ transfer }),
+    }
+  );
+}
+
 export function importProjectTransfer(
   projectId: string,
   mode: "replace" | "duplicate",