feat: 增加下载任务中心与断点续传

src/ui/views/browse.js

@@ -483,17 +483,17 @@ const Browse = (() => {
 
     const lib = await window.api.library.findBySource(sourceId, sourcePostId);
     const entryId = (lib.ok && lib.data) ? lib.data.id : undefined;
-    // 传 meta：条目还不在书库时由主进程自动建，避免下载完却找不到文件
+    // 元数据与页面内进度回调交给全局任务中心，详情页离开后下载仍由它接管
     let res;
     try {
-      res = await window.api.downloadFile(
+      res = await window.DownloadCenter.start({
+        key: `${sourceId}:${sourcePostId}:${suggestedName}`,
         url,
-        suggestedName,
+        suggestName: suggestedName,
         entryId,
-        undefined,
         meta,
-        (data) => { if (progress) updateDownloadProgress(progress, data); }
-      );
+        onProgress: (data) => { if (progress) updateDownloadProgress(progress, data); }
+      });
     } catch (error) {
       res = { ok: false, error: (error && error.message) || String(error) };
     }
@@ -503,6 +503,21 @@ const Browse = (() => {
       btn.textContent = orig; btn.disabled = false;
       return;
     }
+    if (res.ok && res.data && res.data.paused) {
+      if (progress) {
+        progress.box.classList.remove('indeterminate');
+        progress.label.textContent = '已暂停，可在任务中心继续';
+      }
+      btn.textContent = '继续';
+      btn.disabled = false;
+      return;
+    }
+    if (res.ok && res.data && res.data.deleted) {
+      if (progress) progress.box.remove();
+      btn.textContent = orig;
+      btn.disabled = false;
+      return;
+    }
     if (!res.ok) {
       if (progress) {
         progress.box.classList.add('failed');