fix: 版本更新 — 自动检查 + 手动备份 + 创建备份按钮

1. 设置页加载时自动触发版本检查
2. POST /api/updates/backup — 手动创建备份
3. 备份管理区新增「+ 创建备份」按钮
4. 顶栏版本按钮: checkTopUpdate 每10min轮询

Co-Authored-By: Claude <noreply@anthropic.com>

services/web_panel/routes/status.py

@@ -43,6 +43,7 @@ def setup_routes(app, prefix=''):
     app.router.add_get(f'{prefix}/api/updates', panel_auth(get_updates))
     app.router.add_post(f'{prefix}/api/updates/check', panel_auth(check_now))
     app.router.add_post(f'{prefix}/api/updates/apply', panel_auth(apply_update))
+    app.router.add_post(f'{prefix}/api/updates/backup', panel_auth(create_backup))
     app.router.add_get(f'{prefix}/api/updates/backups', panel_auth(list_backups))
     app.router.add_post(f'{prefix}/api/updates/rollback', panel_auth(do_rollback))
     logger.info(f"📡 系统状态WS端点已注册: {prefix}/api/system/ws (已加认证)")
@@ -180,6 +181,33 @@ async def list_backups(req):
     return web.json_response({"backups": backups})
 
 
+async def create_backup(req):
+    """手动创建备份"""
+    import time as _time, os as _os
+    from services.update_service import _backup_current, _PROJECT_ROOT
+    backup_dir = _os.path.join(_PROJECT_ROOT, "data", "backups")
+    _os.makedirs(backup_dir, exist_ok=True)
+    try:
+        sm = req.app.get("service_manager")
+        ver = "unknown"
+        if sm:
+            try:
+                init = sm.get_service("init")
+                ver = init.get_config("base").get("framework", {}).get("version", "0.0.0")
+            except: pass
+        name = f"SenSu_backup_{ver}_{_time.strftime('%Y%m%d_%H%M%S')}.zip"
+        dest = _os.path.join(backup_dir, name)
+        loop = asyncio.get_event_loop()
+        await loop.run_in_executor(None, _backup_current, dest)
+        # 清理旧备份
+        backups = sorted(glob.glob(_os.path.join(backup_dir, "SenSu_backup_*.zip")), key=_os.path.getmtime, reverse=True)
+        for old_b in backups[5:]:
+            _os.unlink(old_b)
+        return web.json_response({"ok": True, "name": name})
+    except Exception as e:
+        return web.json_response({"ok": False, "error": str(e)}, status=500)
+
+
 async def do_rollback(req):
     """执行回滚"""
     import glob, os, zipfile, shutil, tempfile