完善分发与收集任务全流程

- RestJobEx 对齐 task_id，path_file 提交目录路径
- 运行页进度仅跟接口轮询，失败态停留 page3 UI
- 完成态卡位续做，USB/任务轮询生命周期优化
- 拆分 DLL 加载、任务 staging 与提交前校验
- 移除 mock 与冗余样式，补充 native 依赖

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

app/src/preload/index.ts

@@ -14,18 +14,21 @@ const channels = {
     'poll:job-stop',
     'poll:usb-start',
     'poll:usb-stop',
+    'poll:card-position-start',
+    'poll:card-position-stop',
     'dialog:open-directory',
     'dialog:open-file',
     'fs:path-exists',
     'fs:dir-size',
     'fs:parse-soon',
+    'fs:write-job-csv',
     'config:get',
     'config:set',
     'shell:open-path',
     'design:open',
     'dll:reject-available'
   ] as const,
-  on: ['job:poll-tick', 'usb:poll-tick', 'app:trace'] as const
+  on: ['job:poll-tick', 'usb:poll-tick', 'card:position-tick', 'app:trace'] as const
 }
 
 const cardsoonApi = {