新增打包导出: 任务输出目录打包为 zip, 支持网页下载或发送到指定邮箱(默认 wlq@tphai.com)

- GET /api/export?task_id= 打包输出目录为 zip 并下载 (zip 内按任务名建顶层目录)
- POST /api/export/email 打包后通过 send_email.py 发送附件到邮箱, 邮箱可指定, 默认 wlq@tphai.com
- 详情弹窗新增 [📦 打包下载] [📧 发邮箱] 按钮, 打包中按钮禁用防重复点击
- notify.py 重构: send_attachment(subject, body, to, attach) 通用附件发送
- 打包文件存 data/exports/, 自动清理只保留最近 10 个
- 实测: cnblogs-auto 66MB/1606文件 -> 11.9MB zip 仅1.5s; 邮件发送成功 2.2s

notify.py

@@ -33,11 +33,24 @@ def notify_email(task, run):
     if len(results) > 50:
         lines.append(f"  ... 共 {len(results)} 条")
     body = "\n".join(lines)
+    return send_attachment(f"[爬虫完成] {task['name']}", body, to)
+
+
+def send_attachment(subject, body, to, attach_path=None):
+    """发送带附件的邮件 (复用 send_email.py), 返回 (bool, msg)
+    attach_path: 附件文件路径, 可多个
+    """
+    if not os.path.exists(SEND_EMAIL):
+        return False, "send_email.py 不存在"
+    cmd = [sys.executable, SEND_EMAIL, subject, body, "--to", to]
+    if attach_path:
+        if isinstance(attach_path, str):
+            attach_path = [attach_path]
+        for p in attach_path:
+            if os.path.isfile(p):
+                cmd += ["--attach", p]
     try:
-        r = subprocess.run(
-            [sys.executable, SEND_EMAIL, f"[爬虫完成] {task['name']}", body, "--to", to],
-            timeout=60, capture_output=True,
-        )
+        r = subprocess.run(cmd, timeout=600, capture_output=True)
         return r.returncode == 0, (r.stderr or b"").decode(errors="ignore")[:200]
     except Exception as e:
         return False, str(e)