chore(page): 修改 PDF 预览页名称

src/pages.json

@@ -10,7 +10,7 @@
 
         // === PDF 文件预览 ===
         {
-            "path": "pages/common/pdf/pdf-viewer",
+            "path": "pages/common/viewer/pdf",
             "style": {
                 "titleNView": true,
                 "navigationBarTitleText": "",