fix: 检测存活支持分组节点，分组节点不被自动清理误删

bot.py

@@ -175,13 +175,27 @@ async def cb_menu(update: Update, context: ContextTypes.DEFAULT_TYPE):
     elif action == 'menu_check':
         msg = await send_del(q.message, '🔍 检测中...', delay=120)
         results = []
+        # 检测默认分组
+        if data['subs']:
+            results.append('📦 *默认分组*')
             for s in data['subs']:
                 ok = await check_node(s['link'], s['type'])
                 s['alive'] = ok
                 results.append(f"{'🟢' if ok else '🔴'} [{s['type']}] {s['name']}")
+        # 检测所有订阅分组
+        for sg in data.get('sub_groups', []):
+            if not sg.get('nodes'): continue
+            results.append(f"\n📁 *{sg['name']}*")
+            for s in sg['nodes']:
+                ok = await check_node(s['link'], s['type'])
+                s['alive'] = ok
+                results.append(f"{'🟢' if ok else '🔴'} [{s['type']}] {s['name']}")
         save_data(data)
         try: await msg.delete()
         except: pass
+        if not results:
+            await send_del(q.message, '📭 暂无订阅')
+        else:
             await send_del(q.message, '📊 *检测结果*\n\n' + '\n'.join(results), parse_mode='Markdown')
 
     elif action == 'menu_pick_multi':
@@ -763,11 +777,12 @@ async def cb_subgroups(update: Update, context: ContextTypes.DEFAULT_TYPE):
         except: pass
 
 async def auto_cleanup(bot_token):
-    """Every 6h: check nodes, auto-delete dead ones, notify group"""
+    """Every 6h: check nodes, auto-delete dead ones from default subs only, check group nodes but don't delete"""
     import httpx
     await asyncio.sleep(60)
     while True:
         data = load_data()
+        # 默认分组：检测并删除不可用
         if data['subs']:
             dead = []
             for s in list(data['subs']):
@@ -786,6 +801,16 @@ async def auto_cleanup(bot_token):
                                         json={'chat_id': gid, 'text': msg})
                     except: pass
                 log.info(f'Auto cleanup: removed {len(dead)} dead nodes')
+        # 订阅分组：只更新存活状态，不删除
+        changed = False
+        for sg in data.get('sub_groups', []):
+            for s in sg.get('nodes', []):
+                ok = await check_node(s['link'], s['type'])
+                if s.get('alive', True) != ok:
+                    s['alive'] = ok
+                    changed = True
+        if changed:
+            save_data(data)
         await asyncio.sleep(21600)
 
 def run_cleanup():