3D 뷰어 로딩 팝업이 100%에서 남지 않도록 수정

loaded 이후에 progress가 loading을 다시 켜던 순서를 바로잡았습니다.

Co-authored-by: Cursor <cursoragent@cursor.com>

packages/frontend/src/components/model3d/Model3DCanvas.vue

@@ -272,6 +272,7 @@ async function load(files: readonly File[]) {
       applyUp(props.upAxis);
       void nextTick(() => {
         fitCamera();
+        emit('progress', 1, '모델 준비 완료');
         emit(
           'loaded',
           summarizeModel(importResult.model),
@@ -279,7 +280,6 @@ async function load(files: readonly File[]) {
           modelPropertyGroups(importResult.model),
           importResult.missingFiles ?? [],
         );
-        emit('progress', 1, '모델 준비 완료');
         selectByKey(null);
       });
     },

packages/frontend/src/views/Model3DViewerView.vue

@@ -136,9 +136,9 @@ function onFilesSelected(event: Event) {
 }
 
 function onProgress(value: number, label: string) {
-  loading.value = true;
   progress.value = value;
   progressLabel.value = label;
+  if (value < 1) loading.value = true;
 }
 
 function onLoaded(