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/main/services/app-config.ts

@@ -6,7 +6,6 @@ import { getProcessExecDir } from './native-path'
 
 export const APP_CONFIG_FILENAME = 'cardsoon.config.json'
 
-/** 与 cardsoon.config.json 键名一致，后续配置在此扩展 */
 export interface AppFileConfig {
   designAppPath: string
 }
@@ -16,7 +15,6 @@ const defaults: AppFileConfig = {
 }
 
 let cached: AppFileConfig | null = null
-let loadedFrom = ''
 
 function bundledConfigPath(): string {
   if (app.isPackaged) {
@@ -46,7 +44,6 @@ export function loadAppFileConfig(): AppFileConfig {
     if (!fs.existsSync(filePath)) continue
     try {
       cached = parseConfigFile(filePath)
-      loadedFrom = filePath
       log.info(`Loaded ${APP_CONFIG_FILENAME} from ${filePath}`)
       return cached
     } catch (e) {
@@ -55,18 +52,12 @@ export function loadAppFileConfig(): AppFileConfig {
   }
 
   cached = { ...defaults }
-  loadedFrom = ''
   log.warn(
     `${APP_CONFIG_FILENAME} not found (checked: ${configSearchPaths().join(', ')}), using defaults`
   )
   return cached
 }
 
-export function getAppConfigLoadedPath(): string {
-  loadAppFileConfig()
-  return loadedFrom
-}
-
 export function getDesignAppPath(): string {
   return loadAppFileConfig().designAppPath
 }