feat(image): 新增自动下载大图选项（win32 x64）

Co-authored-by: NineBird <CavanasD@users.noreply.github.com>

electron/preload.ts

@@ -365,7 +365,10 @@ contextBridge.exposeInMainWorld('electronAPI', {
       }) => callback(payload)
       ipcRenderer.on('image:decryptProgress', listener)
       return () => ipcRenderer.removeListener('image:decryptProgress', listener)
-    }
+    },
+    startAutoDownload: () => ipcRenderer.invoke('image:startAutoDownload'),
+    stopAutoDownload: () => ipcRenderer.invoke('image:stopAutoDownload'),
+    getAutoDownloadStatus: () => ipcRenderer.invoke('image:getAutoDownloadStatus')
   },
 
   // 视频
@@ -374,6 +377,11 @@ contextBridge.exposeInMainWorld('electronAPI', {
     parseVideoMd5: (content: string) => ipcRenderer.invoke('video:parseVideoMd5', content)
   },
 
+  process: {
+    platform: process.platform,
+    arch: process.arch
+  },
+
   // 数据分析
   analytics: {
     getOverallStatistics: (force?: boolean) => ipcRenderer.invoke('analytics:getOverallStatistics', force),