ui progress db import

src/pages/admin/AdminDatabaseHealthPage.tsx

@@ -950,17 +950,34 @@ const MigrationTab: React.FC = () => {
   // --- Restore: Validate (uploads file to server, streams to disk) ---
   const importTokenRef = useRef('');
 
+  const [uploadProgress, setUploadProgress] = useState('');
+
   const _validateFile = async (file: File) => {
     setValidating(true);
     setValidation(null);
+    setUploadProgress('');
     importTokenRef.current = '';
+
+    const fileMb = (file.size / (1024 * 1024)).toFixed(1);
+
     try {
       const formData = new FormData();
       formData.append('file', file);
       const res = await api.post('/api/admin/database-health/migration/upload-import', formData, {
         headers: { 'Content-Type': 'multipart/form-data' },
         timeout: 0,
+        onUploadProgress: (e) => {
+          if (e.total) {
+            const pct = Math.round((e.loaded / e.total) * 100);
+            const loadedMb = (e.loaded / (1024 * 1024)).toFixed(1);
+            setUploadProgress(pct < 100
+              ? t('Upload: {loaded} / {total} MB ({pct}%)', { loaded: loadedMb, total: fileMb, pct })
+              : t('Validierung laeuft ({total} MB)...', { total: fileMb }),
+            );
+          }
+        },
       });
+      setUploadProgress('');
       importTokenRef.current = res.data.token || '';
       setValidation({
         valid: res.data.valid,
@@ -974,6 +991,7 @@ const MigrationTab: React.FC = () => {
         systemObjectsFound: res.data.systemObjectsFound || [],
       });
     } catch (err: any) {
+      setUploadProgress('');
       const detail = err?.response?.data?.detail;
       setValidation({
         valid: false, summary: [], systemObjectsFound: [],
@@ -1221,7 +1239,7 @@ const MigrationTab: React.FC = () => {
             {validating && (
               <div className={styles.loadingContainer} style={{ padding: '1rem' }}>
                 <div className={styles.spinner} />
-                <span>{t('Validierung laeuft...')}</span>
+                <span>{uploadProgress || t('Validierung laeuft...')}</span>
               </div>
             )}