commit 1fd4c94097c9f910e881b8397b2809a295448722
Author: gz <bj.guozhong@163.com>
Date:   Fri May 29 09:40:07 2026 +0800

    Initial commit

diff --git a/README.md b/README.md
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diff --git a/__pycache__/chat.cpython-312.pyc b/__pycache__/chat.cpython-312.pyc
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diff --git a/__pycache__/chat.cpython-38.pyc b/__pycache__/chat.cpython-38.pyc
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diff --git a/backups/chat_history_20260522_143254.txt b/backups/chat_history_20260522_143254.txt
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+[2026-05-22 12:59:36] SYSTEM::zgz 加入聊天室
+[2026-05-22 12:59:38] SYSTEM::gz 加入聊天室
+[2026-05-22 13:00:32] SYSTEM::gz 离开聊天室
+[2026-05-22 13:00:32] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:00:36] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:00:37] SYSTEM::gz 加入聊天室
+[2026-05-22 13:01:06] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:01:09] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:01:15] TEXT::zgz::?试一下
+[2026-05-22 13:01:18] TEXT::zgz::????
+[2026-05-22 13:01:27] TEXT::zgz::123123123123、
+[2026-05-22 13:05:09] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:05:09] SYSTEM::gz 离开聊天室
+[2026-05-22 13:05:14] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:05:14] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:05:18] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:05:21] SYSTEM::gz 加入聊天室
+[2026-05-22 13:12:59] SYSTEM::gz 离开聊天室
+[2026-05-22 13:12:59] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:13:04] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:13:05] SYSTEM::gz 加入聊天室
+[2026-05-22 13:16:58] SYSTEM::gz 离开聊天室
+[2026-05-22 13:16:58] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:17:03] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:17:04] SYSTEM::gz 加入聊天室
+[2026-05-22 13:18:06] SYSTEM::gz 离开聊天室
+[2026-05-22 13:18:06] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:18:12] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:18:14] SYSTEM::gz 加入聊天室
+[2026-05-22 13:19:14] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:19:17] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:19:18] TEXT::zgz::?
+[2026-05-22 13:19:23] TEXT::zgz::你好
+[2026-05-22 13:19:26] TEXT::zgz::你好
+[2026-05-22 13:19:27] TEXT::zgz::显示
+[2026-05-22 13:19:31] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:19:33] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:19:35] TEXT::zgz::你好
+[2026-05-22 13:20:14] TEXT::zgz::???
+[2026-05-22 13:20:19] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:20:21] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:20:22] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:20:27] SYSTEM::gz 离开聊天室
+[2026-05-22 13:20:30] SYSTEM::gz 加入聊天室
+[2026-05-22 13:20:35] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:20:45] TEXT::gz::你好
+[2026-05-22 13:20:48] TEXT::gz::???
+[2026-05-22 13:20:55] TEXT::zgz::????
+[2026-05-22 13:28:15] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:28:18] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:28:19] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:28:21] SYSTEM::zgz 加入聊天室
+[2026-05-22 13:30:49] SYSTEM::zgz 离开聊天室
+[2026-05-22 13:30:49] SYSTEM::gz 离开聊天室
+[2026-05-22 14:04:27] SYSTEM::gz 加入聊天室
+[2026-05-22 14:04:31] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:04:32] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:04:34] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:04:37] TEXT::zgz::123
+[2026-05-22 14:04:38] TEXT::zgz::123
+[2026-05-22 14:04:38] TEXT::zgz::12
+[2026-05-22 14:04:38] TEXT::zgz::3
+[2026-05-22 14:04:38] TEXT::zgz::21
+[2026-05-22 14:04:38] TEXT::zgz::321
+[2026-05-22 14:04:39] TEXT::zgz::31
+[2026-05-22 14:04:41] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:04:43] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:04:52] TEXT::zgz::12313
+[2026-05-22 14:04:54] TEXT::zgz::1111
+[2026-05-22 14:11:15] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:11:17] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:11:19] TEXT::zgz::123
+[2026-05-22 14:11:20] TEXT::zgz::123
+[2026-05-22 14:11:22] TEXT::zgz::qwe
+[2026-05-22 14:11:22] TEXT::zgz::qwe
+[2026-05-22 14:11:25] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:11:27] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:12:30] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:12:30] SYSTEM::gz 离开聊天室
+[2026-05-22 14:13:41] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:13:42] SYSTEM::gz 加入聊天室
+[2026-05-22 14:13:55] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:13:58] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:13:58] TEXT::zgz::1111
+[2026-05-22 14:13:59] TEXT::zgz::2222
+[2026-05-22 14:14:00] TEXT::zgz::3333
+[2026-05-22 14:14:01] TEXT::zgz::444
+[2026-05-22 14:14:03] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:14:05] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:30:26] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:30:26] SYSTEM::gz 离开聊天室
+[2026-05-22 14:30:31] SYSTEM::gz 加入聊天室
+[2026-05-22 14:30:31] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:32:44] SYSTEM::测试机器人 加入聊天室
+[2026-05-22 14:32:44] TEXT::测试机器人::你好世界
+[2026-05-22 14:32:44] SYSTEM::匿名用户 离开聊天室
+[2026-05-22 14:32:48] SYSTEM::测试机器人2 加入聊天室
+[2026-05-22 14:32:48] TEXT::测试机器人2::这是一条实时测试消息！
+[2026-05-22 14:32:48] SYSTEM::测试机器人2 离开聊天室
diff --git a/backups/chat_history_20260522_143305.txt b/backups/chat_history_20260522_143305.txt
new file mode 100644
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--- /dev/null
+++ b/backups/chat_history_20260522_143305.txt
@@ -0,0 +1,2 @@
+[2026-05-22 14:32:59] SYSTEM::nginx测试 加入聊天室
+[2026-05-22 14:32:59] SYSTEM::nginx测试 离开聊天室
diff --git a/backups/chat_history_20260523_030001.txt b/backups/chat_history_20260523_030001.txt
new file mode 100644
index 0000000..80dcf48
--- /dev/null
+++ b/backups/chat_history_20260523_030001.txt
@@ -0,0 +1,131 @@
+[2026-05-22 14:36:47] SYSTEM::gz 离开聊天室
+[2026-05-22 14:36:50] SYSTEM::gz 加入聊天室
+[2026-05-22 14:36:54] TEXT::gz::测试一下
+[2026-05-22 14:36:58] TEXT::gz::发送聊天记录
+[2026-05-22 14:37:19] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:37:21] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:37:25] TEXT::zgz::可以,还不错
+[2026-05-22 14:37:28] TEXT::zgz::哪里
+[2026-05-22 14:37:33] TEXT::zgz::什么啊
+[2026-05-22 14:37:47] TEXT::gz::你是谁
+[2026-05-22 14:40:58] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:41:00] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:41:09] TEXT::zgz::你好
+[2026-05-22 14:41:12] TEXT::zgz::什么
+[2026-05-22 14:41:15] TEXT::zgz::这是哪里的消息.
+[2026-05-22 14:41:22] TEXT::zgz::可以啊
+[2026-05-22 14:41:57] TEXT::zgz::刚刚发送了图片,是不是没显示成功
+[2026-05-22 14:42:12] TEXT::zgz::还是说文件太大了
+[2026-05-22 14:43:47] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:43:47] SYSTEM::gz 离开聊天室
+[2026-05-22 14:43:57] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:43:57] SYSTEM::gz 加入聊天室
+[2026-05-22 14:44:00] SYSTEM::gz 离开聊天室
+[2026-05-22 14:44:00] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:44:05] SYSTEM::gz 加入聊天室
+[2026-05-22 14:44:05] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:44:47] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:44:49] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:45:15] TEXT::zgz::还没有成功?
+[2026-05-22 14:47:35] SYSTEM::gz 离开聊天室
+[2026-05-22 14:47:37] SYSTEM::gz 加入聊天室
+[2026-05-22 14:47:41] TEXT::gz::我再试一下
+[2026-05-22 14:48:22] TEXT::gz::?
+[2026-05-22 14:48:43] SYSTEM::gz 离开聊天室
+[2026-05-22 14:48:46] SYSTEM::gz 加入聊天室
+[2026-05-22 14:53:04] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:53:04] SYSTEM::gz 离开聊天室
+[2026-05-22 14:53:09] SYSTEM::gz 加入聊天室
+[2026-05-22 14:53:10] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:53:10] SYSTEM::gz 离开聊天室
+[2026-05-22 14:53:10] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:53:15] SYSTEM::gz 加入聊天室
+[2026-05-22 14:53:15] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:53:25] SYSTEM::测试用户 加入聊天室
+[2026-05-22 14:53:25] SYSTEM::测试用户 离开聊天室
+[2026-05-22 14:53:41] SYSTEM::gz 离开聊天室
+[2026-05-22 14:53:45] SYSTEM::gz 加入聊天室
+[2026-05-22 14:53:49] TEXT::gz::123
+[2026-05-22 14:54:12] TEXT::gz::这次真可以了.
+[2026-05-22 14:56:29] SYSTEM::怀旧用户 加入聊天室
+[2026-05-22 14:56:29] TEXT::怀旧用户::你好，老聊天室的感觉！
+[2026-05-22 14:56:29] SYSTEM::怀旧用户 离开聊天室
+[2026-05-22 14:56:57] SYSTEM::gz 离开聊天室
+[2026-05-22 14:57:00] SYSTEM::gz 加入聊天室
+[2026-05-22 14:57:15] TEXT::gz::你好
+[2026-05-22 14:57:22] TEXT::gz::测试一下
+[2026-05-22 14:57:39] SYSTEM::zgz 离开聊天室
+[2026-05-22 14:57:41] SYSTEM::zgz 加入聊天室
+[2026-05-22 14:57:43] TEXT::zgz::还可以啊
+[2026-05-22 14:57:56] TEXT::zgz::继续
+[2026-05-22 14:57:59] TEXT::zgz::测试
+[2026-05-22 14:59:09] SYSTEM::ts 加入聊天室
+[2026-05-22 14:59:32] TEXT::ts::什么？
+[2026-05-22 14:59:46] TEXT::ts::东东
+[2026-05-22 15:00:22] SYSTEM::ts 离开聊天室
+[2026-05-22 15:03:16] SYSTEM::TG用户 加入聊天室
+[2026-05-22 15:03:16] TEXT::TG用户::Telegram风格测试
+[2026-05-22 15:03:16] SYSTEM::TG用户 离开聊天室
+[2026-05-22 15:03:32] SYSTEM::zgz 离开聊天室
+[2026-05-22 15:03:35] SYSTEM::zgz 加入聊天室
+[2026-05-22 15:09:15] SYSTEM::设计测试 加入聊天室
+[2026-05-22 15:09:15] TEXT::设计测试::对齐布局测试
+[2026-05-22 15:09:15] SYSTEM::设计测试 离开聊天室
+[2026-05-22 15:09:52] SYSTEM::gz 离开聊天室
+[2026-05-22 15:09:54] SYSTEM::gz 加入聊天室
+[2026-05-22 15:12:39] TEXT::gz::这是
+[2026-05-22 15:12:44] TEXT::gz::什么内容.
+[2026-05-22 15:14:58] SYSTEM::群聊测试 加入聊天室
+[2026-05-22 15:14:58] TEXT::群聊测试::所有人都在左侧
+[2026-05-22 15:14:58] SYSTEM::群聊测试 离开聊天室
+[2026-05-22 15:15:41] SYSTEM::gz 离开聊天室
+[2026-05-22 15:15:44] SYSTEM::gz 加入聊天室
+[2026-05-22 15:15:49] TEXT::gz::这能区分出来哪个是我吗
+[2026-05-22 15:15:53] TEXT::gz::哦
+[2026-05-22 15:15:56] TEXT::gz::好像可以
+[2026-05-22 15:16:07] SYSTEM::zgz 离开聊天室
+[2026-05-22 15:16:09] SYSTEM::zgz 加入聊天室
+[2026-05-22 15:16:10] TEXT::zgz::试一下
+[2026-05-22 15:16:12] TEXT::zgz::这个是我
+[2026-05-22 15:16:22] SYSTEM::zgz 离开聊天室
+[2026-05-22 15:16:27] SYSTEM::gz 离开聊天室
+[2026-05-22 15:16:29] SYSTEM::gz 加入聊天室
+[2026-05-22 15:16:43] TEXT::gz::好玩的.
+[2026-05-22 15:16:47] TEXT::gz::test
+[2026-05-22 15:16:47] TEXT::gz::test
+[2026-05-22 15:20:08] SYSTEM::无痕测试 加入聊天室
+[2026-05-22 15:20:08] TEXT::无痕测试::退出重进就看不见了
+[2026-05-22 15:20:08] SYSTEM::无痕测试 离开聊天室
+[2026-05-22 15:20:35] SYSTEM::gz 离开聊天室
+[2026-05-22 15:20:37] SYSTEM::gz 加入聊天室
+[2026-05-22 15:20:51] TEXT::gz::你好,这是一条新的消息.
+[2026-05-22 15:20:56] TEXT::gz::开始测试.
+[2026-05-22 15:21:08] SYSTEM::gz 加入聊天室
+[2026-05-22 15:21:13] SYSTEM::gz 离开聊天室
+[2026-05-22 15:21:28] SYSTEM::ts 加入聊天室
+[2026-05-22 15:21:36] TEXT::ts::hello
+[2026-05-22 15:21:36] TEXT::ts::hello
+[2026-05-22 15:21:40] TEXT::ts::可以吗
+[2026-05-22 15:21:43] TEXT::ts::历史
+[2026-05-22 15:22:03] SYSTEM::ts 离开聊天室
+[2026-05-22 15:22:25] TEXT::gz::退出再进消息就没了
+[2026-05-22 16:47:10] SYSTEM::ts 加入聊天室
+[2026-05-22 16:47:11] SYSTEM::ts 离开聊天室
+[2026-05-22 16:47:13] SYSTEM::ts 加入聊天室
+[2026-05-22 16:49:26] SYSTEM::ts 离开聊天室
+[2026-05-22 17:59:32] SYSTEM::gz 离开聊天室
+[2026-05-22 17:59:37] SYSTEM::gz 加入聊天室
+[2026-05-22 18:00:16] SYSTEM::gz 离开聊天室
+[2026-05-22 18:01:20] SYSTEM::gz 加入聊天室
+[2026-05-22 18:02:20] SYSTEM::gz 离开聊天室
+[2026-05-22 18:18:47] SYSTEM::gz 加入聊天室
+[2026-05-22 18:22:10] SYSTEM::gz 离开聊天室
+[2026-05-22 18:38:35] SYSTEM::gz 加入聊天室
+[2026-05-22 18:40:16] SYSTEM::gz 离开聊天室
+[2026-05-22 18:57:14] SYSTEM::gz 加入聊天室
+[2026-05-22 21:05:21] SYSTEM::gz 离开聊天室
+[2026-05-22 21:05:26] SYSTEM::gz 加入聊天室
+[2026-05-22 23:10:35] SYSTEM::gz 离开聊天室
+[2026-05-22 23:15:01] SYSTEM::gz 加入聊天室
+[2026-05-22 23:22:08] SYSTEM::gz 离开聊天室
+[2026-05-22 23:26:34] SYSTEM::gz 加入聊天室
diff --git a/backups/chat_history_20260524_030001.txt b/backups/chat_history_20260524_030001.txt
new file mode 100644
index 0000000..ba34c08
--- /dev/null
+++ b/backups/chat_history_20260524_030001.txt
@@ -0,0 +1,8 @@
+[2026-05-23 03:00:06] SYSTEM::gz 离开聊天室
+[2026-05-23 03:01:10] SYSTEM::gz 加入聊天室
+[2026-05-23 09:16:55] SYSTEM::gz 离开聊天室
+[2026-05-23 09:24:58] SYSTEM::gz 加入聊天室
+[2026-05-23 13:21:44] SYSTEM::gz 离开聊天室
+[2026-05-23 13:26:48] SYSTEM::gz 加入聊天室
+[2026-05-23 16:47:08] SYSTEM::gz 离开聊天室
+[2026-05-23 16:47:13] SYSTEM::gz 加入聊天室
diff --git a/backups/chat_history_20260525_030001.txt b/backups/chat_history_20260525_030001.txt
new file mode 100644
index 0000000..74c9bf4
--- /dev/null
+++ b/backups/chat_history_20260525_030001.txt
@@ -0,0 +1,6 @@
+[2026-05-24 03:00:06] SYSTEM::gz 离开聊天室
+[2026-05-24 03:01:11] SYSTEM::gz 加入聊天室
+[2026-05-24 21:55:39] SYSTEM::gz 离开聊天室
+[2026-05-24 22:00:06] SYSTEM::gz 加入聊天室
+[2026-05-24 22:02:28] SYSTEM::gz 离开聊天室
+[2026-05-24 22:07:18] SYSTEM::gz 加入聊天室
diff --git a/backups/chat_history_20260526_030001.txt b/backups/chat_history_20260526_030001.txt
new file mode 100644
index 0000000..3259e53
--- /dev/null
+++ b/backups/chat_history_20260526_030001.txt
@@ -0,0 +1,20 @@
+[2026-05-25 03:00:06] SYSTEM::gz 离开聊天室
+[2026-05-25 03:01:14] SYSTEM::gz 加入聊天室
+[2026-05-25 09:18:50] SYSTEM::gz 离开聊天室
+[2026-05-25 09:21:12] SYSTEM::gz 加入聊天室
+[2026-05-25 13:31:34] SYSTEM::gz 离开聊天室
+[2026-05-25 13:38:33] SYSTEM::gz 加入聊天室
+[2026-05-25 14:30:06] SYSTEM::gz 加入聊天室
+[2026-05-25 14:31:56] SYSTEM::匿名6524 加入聊天室
+[2026-05-25 14:32:07] SYSTEM::匿名6524 离开聊天室
+[2026-05-25 14:35:01] SYSTEM::gz 离开聊天室
+[2026-05-25 14:35:40] SYSTEM::gz 离开聊天室
+[2026-05-25 14:35:41] SYSTEM::gz 加入聊天室
+[2026-05-25 14:35:53] SYSTEM::zgz 加入聊天室
+[2026-05-25 14:35:55] SYSTEM::zgz 离开聊天室
+[2026-05-25 18:12:17] SYSTEM::gz 离开聊天室
+[2026-05-25 18:12:20] SYSTEM::gz 加入聊天室
+[2026-05-25 18:12:22] SYSTEM::gz 离开聊天室
+[2026-05-25 18:12:24] SYSTEM::gz 加入聊天室
+[2026-05-25 18:13:04] SYSTEM::gz 离开聊天室
+[2026-05-25 18:32:44] SYSTEM::gz 加入聊天室
diff --git a/backups/chat_history_20260527_030001.txt b/backups/chat_history_20260527_030001.txt
new file mode 100644
index 0000000..362f637
--- /dev/null
+++ b/backups/chat_history_20260527_030001.txt
@@ -0,0 +1,26 @@
+[2026-05-26 03:00:06] SYSTEM::gz 离开聊天室
+[2026-05-26 03:02:58] SYSTEM::gz 加入聊天室
+[2026-05-26 04:00:38] SYSTEM::gz 离开聊天室
+[2026-05-26 04:05:03] SYSTEM::gz 加入聊天室
+[2026-05-26 09:00:25] SYSTEM::gz 离开聊天室
+[2026-05-26 09:01:05] SYSTEM::gz 加入聊天室
+[2026-05-26 18:04:52] SYSTEM::gz 离开聊天室
+[2026-05-26 18:04:55] SYSTEM::gz 加入聊天室
+[2026-05-26 18:05:35] SYSTEM::gz 离开聊天室
+[2026-05-26 18:20:09] SYSTEM::gz 加入聊天室
+[2026-05-26 18:24:00] SYSTEM::gz 离开聊天室
+[2026-05-26 18:40:12] SYSTEM::gz 加入聊天室
+[2026-05-26 19:47:40] SYSTEM::gz 离开聊天室
+[2026-05-26 20:04:10] SYSTEM::gz 加入聊天室
+[2026-05-26 20:08:33] SYSTEM::gz 离开聊天室
+[2026-05-26 20:25:13] SYSTEM::gz 加入聊天室
+[2026-05-26 20:26:53] SYSTEM::gz 离开聊天室
+[2026-05-26 20:41:49] SYSTEM::gz 加入聊天室
+[2026-05-26 20:52:57] SYSTEM::gz 离开聊天室
+[2026-05-26 21:09:09] SYSTEM::gz 加入聊天室
+[2026-05-26 21:11:10] SYSTEM::gz 离开聊天室
+[2026-05-26 21:26:00] SYSTEM::gz 加入聊天室
+[2026-05-26 21:27:20] SYSTEM::gz 离开聊天室
+[2026-05-26 21:44:19] SYSTEM::gz 加入聊天室
+[2026-05-26 21:45:39] SYSTEM::gz 离开聊天室
+[2026-05-26 22:00:53] SYSTEM::gz 加入聊天室
diff --git a/backups/chat_history_20260528_030001.txt b/backups/chat_history_20260528_030001.txt
new file mode 100644
index 0000000..fb5710e
--- /dev/null
+++ b/backups/chat_history_20260528_030001.txt
@@ -0,0 +1,39 @@
+[2026-05-27 03:00:06] SYSTEM::gz 离开聊天室
+[2026-05-27 03:01:45] SYSTEM::gz 加入聊天室
+[2026-05-27 04:00:25] SYSTEM::gz 离开聊天室
+[2026-05-27 04:04:50] SYSTEM::gz 加入聊天室
+[2026-05-27 07:59:08] SYSTEM::gz 离开聊天室
+[2026-05-27 08:18:30] SYSTEM::gz 加入聊天室
+[2026-05-27 08:20:11] SYSTEM::gz 离开聊天室
+[2026-05-27 08:36:08] SYSTEM::gz 加入聊天室
+[2026-05-27 08:42:13] SYSTEM::gz 离开聊天室
+[2026-05-27 08:42:14] SYSTEM::gz 加入聊天室
+[2026-05-27 08:42:42] SYSTEM::张卫贤 加入聊天室
+[2026-05-27 08:42:45] TEXT::张卫贤::1
+[2026-05-27 08:42:47] SYSTEM::匿名9712 加入聊天室
+[2026-05-27 08:42:48] TEXT::gz::?
+[2026-05-27 08:42:49] SYSTEM::匿名9712 离开聊天室
+[2026-05-27 08:42:54] SYSTEM::gz 离开聊天室
+[2026-05-27 08:42:56] SYSTEM::gz 加入聊天室
+[2026-05-27 08:42:59] TEXT::gz::哈
+[2026-05-27 08:45:15] SYSTEM::匿名6572 加入聊天室
+[2026-05-27 08:45:17] SYSTEM::匿名6572 离开聊天室
+[2026-05-27 08:46:16] SYSTEM::张卫贤 加入聊天室
+[2026-05-27 08:46:31] SYSTEM::张卫贤 离开聊天室
+[2026-05-27 08:56:47] SYSTEM::张卫贤 离开聊天室
+[2026-05-27 10:15:46] SYSTEM::匿名3899 加入聊天室
+[2026-05-27 10:15:47] SYSTEM::匿名3899 离开聊天室
+[2026-05-27 16:18:34] SYSTEM::gz 离开聊天室
+[2026-05-27 16:18:44] SYSTEM::gz 加入聊天室
+[2026-05-27 18:01:59] SYSTEM::gz 离开聊天室
+[2026-05-27 18:02:02] SYSTEM::gz 加入聊天室
+[2026-05-27 18:02:41] SYSTEM::gz 离开聊天室
+[2026-05-27 18:17:23] SYSTEM::gz 加入聊天室
+[2026-05-27 18:18:43] SYSTEM::gz 离开聊天室
+[2026-05-27 18:34:51] SYSTEM::gz 加入聊天室
+[2026-05-27 20:32:01] SYSTEM::gz 离开聊天室
+[2026-05-27 20:42:44] SYSTEM::gz 加入聊天室
+[2026-05-27 23:06:33] SYSTEM::gz 离开聊天室
+[2026-05-27 23:06:39] SYSTEM::gz 加入聊天室
+[2026-05-27 23:44:03] SYSTEM::gz 加入聊天室
+[2026-05-27 23:44:19] SYSTEM::gz 离开聊天室
diff --git a/backups/chat_history_20260529_030001.txt b/backups/chat_history_20260529_030001.txt
new file mode 100644
index 0000000..4fd4f75
--- /dev/null
+++ b/backups/chat_history_20260529_030001.txt
@@ -0,0 +1,21 @@
+[2026-05-28 03:00:06] SYSTEM::gz 离开聊天室
+[2026-05-28 03:01:42] SYSTEM::gz 加入聊天室
+[2026-05-28 11:15:18] SYSTEM::gz 离开聊天室
+[2026-05-28 11:18:26] SYSTEM::gz 加入聊天室
+[2026-05-28 11:32:23] SYSTEM::gz 离开聊天室
+[2026-05-28 11:34:51] SYSTEM::gz 加入聊天室
+[2026-05-28 11:37:14] SYSTEM::gz 离开聊天室
+[2026-05-28 11:37:18] SYSTEM::gz 加入聊天室
+[2026-05-28 12:42:05] SYSTEM::gz 离开聊天室
+[2026-05-28 12:42:09] SYSTEM::gz 加入聊天室
+[2026-05-28 13:08:21] SYSTEM::gz 离开聊天室
+[2026-05-28 13:09:56] SYSTEM::gz 加入聊天室
+[2026-05-28 13:14:47] SYSTEM::gz 离开聊天室
+[2026-05-28 13:14:51] SYSTEM::gz 加入聊天室
+[2026-05-28 14:04:28] SYSTEM::ts 加入聊天室
+[2026-05-28 14:05:34] SYSTEM::ts 离开聊天室
+[2026-05-28 14:14:02] SYSTEM::ts 加入聊天室
+[2026-05-28 14:17:20] SYSTEM::ts 离开聊天室
+[2026-05-28 14:20:23] SYSTEM::gz 离开聊天室
+[2026-05-28 14:48:35] SYSTEM::ts 加入聊天室
+[2026-05-28 14:50:54] SYSTEM::ts 离开聊天室
diff --git a/chat.py b/chat.py
new file mode 100644
index 0000000..f1b430d
--- /dev/null
+++ b/chat.py
@@ -0,0 +1,300 @@
+"""
+ChatHub - 实时聊天室
+FastAPI + WebSocket
+"""
+from fastapi import FastAPI, WebSocket, WebSocketDisconnect, UploadFile, File, Form, Request
+from fastapi.responses import HTMLResponse, JSONResponse
+from fastapi.staticfiles import StaticFiles
+from fastapi.templating import Jinja2Templates
+from typing import List, Dict, Tuple
+import os
+import uuid
+import json
+import asyncio
+import shutil
+import time
+import collections
+from datetime import datetime
+
+app = FastAPI()
+
+BASE_DIR = os.path.dirname(os.path.abspath(__file__))
+TEMPLATE_DIR = os.path.join(BASE_DIR, "templates")
+UPLOAD_DIR = os.path.join(BASE_DIR, "uploads")
+BACKUP_DIR = os.path.join(BASE_DIR, "backups")
+os.makedirs(UPLOAD_DIR, exist_ok=True)
+os.makedirs(BACKUP_DIR, exist_ok=True)
+
+CHAT_LOG_FILE = os.path.join(BASE_DIR, "chat_history.txt")
+MAX_FILE_SIZE = 10 * 1024 * 1024  # 10MB per file
+
+ALLOWED_IMAGE_EXTENSIONS = {"png", "jpg", "jpeg", "gif", "bmp", "tiff", "webp", "heic"}
+ALLOWED_VIDEO_EXTENSIONS = {"mp4", "mov", "wmv", "avi", "m4v", "mpg", "mpeg", "flv", "mkv", "3gp", "webm"}
+
+templates = Jinja2Templates(directory=TEMPLATE_DIR)
+app.mount("/uploads", StaticFiles(directory=UPLOAD_DIR), name="uploads")
+
+# ── Global State ────────────────────────────────────────────
+connections: Dict[WebSocket, str] = {}  # ws -> username
+glock = asyncio.Lock()
+
+# ── Rate Limiting ─────────────────────────────────────────
+# Upload rate limit: {ip: [timestamp, ...]}
+upload_history: Dict[str, List[float]] = {}
+UPLOAD_COOLDOWN = 3.0  # seconds between uploads
+
+# Message rate limit: per-connection message timestamps
+msg_history: Dict[WebSocket, List[float]] = {}
+MSG_BURST = 8       # max messages
+MSG_WINDOW = 3.0    # per this many seconds
+
+
+def get_ext(fn: str) -> str:
+    return fn.rsplit(".", 1)[-1].lower()
+
+
+def is_image(ext: str) -> bool:
+    return ext in ALLOWED_IMAGE_EXTENSIONS
+
+
+def is_video(ext: str) -> bool:
+    return ext in ALLOWED_VIDEO_EXTENSIONS
+
+
+def log_to_file(msg: str):
+    ts = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+    try:
+        with open(CHAT_LOG_FILE, "a", encoding="utf-8") as f:
+            f.write(f"[{ts}] {msg}\n")
+    except Exception:
+        pass
+
+
+def load_recent_history(n: int = 200) -> List[str]:
+    if not os.path.exists(CHAT_LOG_FILE):
+        return []
+    try:
+        with open(CHAT_LOG_FILE, "r", encoding="utf-8") as f:
+            lines = f.readlines()
+        return [l.strip() for l in lines[-n:]]
+    except Exception:
+        return []
+
+
+# ── HTTP Endpoints ──────────────────────────────────────────
+
+@app.get("/", response_class=HTMLResponse)
+async def index(request: Request):
+    history = load_recent_history(200)
+    return templates.TemplateResponse("chat.html", {"request": request, "history": history})
+
+
+@app.get("/members")
+async def get_members():
+    """Return current online member list."""
+    async with glock:
+        names = list(connections.values())
+    return JSONResponse({"members": names})
+
+
+# ── Rate Limiter Helpers ────────────────────────────────
+
+async def _check_upload_rate(request: Request) -> Tuple[bool, str]:
+    """Check upload rate limit per client IP.
+    Returns (allowed, reason).
+    """
+    ip = request.client.host if request.client else "unknown"
+    now = time.time()
+    
+    async with glock:
+        times = upload_history.get(ip, [])
+        # Clean old entries
+        times = [t for t in times if now - t < UPLOAD_COOLDOWN]
+        if times:
+            remaining = int(UPLOAD_COOLDOWN - (now - times[-1]))
+            return False, f"上传太频繁，请 {remaining} 秒后再试"
+        times.append(now)
+        upload_history[ip] = times
+    return True, ""
+
+
+async def _check_msg_rate(ws: WebSocket) -> bool:
+    """Check message send rate per WebSocket connection."""
+    now = time.time()
+    async with glock:
+        times = msg_history.get(ws, [])
+        times = [t for t in times if now - t < MSG_WINDOW]
+        if len(times) >= MSG_BURST:
+            return False
+        times.append(now)
+        msg_history[ws] = times
+    return True
+
+
+# ── HTTP Endpoints ──────────────────────────────────────────
+
+@app.get("/", response_class=HTMLResponse)
+async def index(request: Request):
+    history = load_recent_history(200)
+    return templates.TemplateResponse("chat.html", {"request": request, "history": history})
+
+
+@app.get("/members")
+async def get_members():
+    """Return current online member list."""
+    async with glock:
+        names = list(connections.values())
+    return JSONResponse({"members": names})
+
+
+@app.post("/upload")
+async def upload_file(file: UploadFile = File(...), request: Request = None, sender: str = Form("匿名")):
+    # Rate limit check
+    allowed, reason = await _check_upload_rate(request)
+    if not allowed:
+        return JSONResponse({"error": reason}, status_code=429)
+    
+    # File type check
+    ext = get_ext(file.filename)
+    if not (is_image(ext) or is_video(ext)):
+        return JSONResponse({"error": "不支持的文件类型，仅接受图片和视频"}, status_code=400)
+    
+    # Read and check size
+    data = await file.read()
+    if len(data) > MAX_FILE_SIZE:
+        size_mb = len(data) / (1024 * 1024)
+        return JSONResponse({
+            "error": f"文件过大（{size_mb:.1f}MB），最大允许 10MB"
+        }, status_code=413)
+    
+    # Save and broadcast
+    fn = f"{uuid.uuid4().hex}.{ext}"
+    path = os.path.join(UPLOAD_DIR, fn)
+    with open(path, "wb") as f:
+        f.write(data)
+    url = f"/uploads/{fn}"
+    # Format: TYPE::sender::url — frontend parses two colons
+    msg = f"IMG::{sender}::{url}" if is_image(ext) else f"VIDEO::{sender}::{url}"
+    asyncio.create_task(_broadcast(msg))
+    return {"url": url}
+
+
+# ── Broadcast ───────────────────────────────────────────────
+
+async def _broadcast(message: str):
+    """Send message to all connected clients.
+    Uses snapshot-then-send pattern: grab targets under lock, then send concurrently without lock.
+    """
+    async with glock:
+        targets = list(connections.items())  # [(ws, name), ...]
+
+    tasks = []
+    for ws, _ in targets:
+        tasks.append(_safe_send(ws, message))
+    if tasks:
+        await asyncio.gather(*tasks, return_exceptions=True)
+
+
+async def _safe_send(ws: WebSocket, message: str):
+    """Send text to one WebSocket, remove on failure."""
+    try:
+        await ws.send_text(message)
+    except Exception:
+        async with glock:
+            connections.pop(ws, None)
+
+
+async def _broadcast_members():
+    """Broadcast JSON member list and count to all clients."""
+    async with glock:
+        names = list(connections.values())
+        count = len(names)
+    payload = json.dumps({"type": "members", "data": names})
+    await _broadcast(f"MEMBERS::{payload}")
+    await _broadcast(f"COUNT::{count}")
+
+
+# ── WebSocket Endpoint ──────────────────────────────────────
+
+@app.websocket("/wschat")
+async def ws_endpoint(ws: WebSocket):
+    await ws.accept()
+
+    # ── 1) Receive username as first text frame ──
+    try:
+        raw = await asyncio.wait_for(ws.receive_text(), timeout=30)
+    except Exception:
+        await ws.close(1008)
+        return
+
+    username = (raw.strip() or f"匿名{id(ws) % 10000}")[:20]
+
+    async with glock:
+        connections[ws] = username
+
+    join_msg = f"SYSTEM::{username} 加入聊天室"
+    log_to_file(join_msg)
+    asyncio.create_task(_broadcast(join_msg))
+    asyncio.create_task(_broadcast_members())
+
+    # ── 2) Message loop ──
+    try:
+        while True:
+            text = await ws.receive_text()
+            if not text or not text.strip():
+                continue
+            # Rate limit check
+            if not await _check_msg_rate(ws):
+                asyncio.create_task(_safe_send(ws, "SYSTEM::⚠️ 发送太频繁，请稍后再试"))
+                continue
+            msg = f"TEXT::{username}::{text.strip()}"
+            log_to_file(msg)
+            asyncio.create_task(_broadcast(msg))
+    except (WebSocketDisconnect, Exception):
+        pass
+    finally:
+        async with glock:
+            name = connections.pop(ws, None) or "匿名用户"
+        leave_msg = f"SYSTEM::{name} 离开聊天室"
+        log_to_file(leave_msg)
+        asyncio.create_task(_broadcast(leave_msg))
+        asyncio.create_task(_broadcast_members())
+
+
+# ── Nightly Cleanup ─────────────────────────────────────────
+
+@app.post("/api/nightly-cleanup")
+async def nightly_cleanup():
+    """Backup chat history to backups/ dir, then clear the log.
+    Also purge uploaded files older than 24h.
+    Called by cron / systemd timer.
+    """
+    now = datetime.now()
+    backup_name = f"chat_history_{now.strftime('%Y%m%d_%H%M%S')}.txt"
+    backup_path = os.path.join(BACKUP_DIR, backup_name)
+
+    if os.path.exists(CHAT_LOG_FILE) and os.path.getsize(CHAT_LOG_FILE) > 0:
+        shutil.copy2(CHAT_LOG_FILE, backup_path)
+        # Clear log
+        open(CHAT_LOG_FILE, "w", encoding="utf-8").close()
+
+    # Clean old uploads (> 24h)
+    now_ts = time.time()
+    cleaned = 0
+    for fname in os.listdir(UPLOAD_DIR):
+        fpath = os.path.join(UPLOAD_DIR, fname)
+        if os.path.isfile(fpath) and now_ts - os.path.getmtime(fpath) > 86400:
+            try:
+                os.remove(fpath)
+                cleaned += 1
+            except Exception:
+                pass
+
+    return {"status": "ok", "backup": backup_name, "cleaned_uploads": cleaned}
+
+
+# ── Main ────────────────────────────────────────────────────
+
+if __name__ == "__main__":
+    import uvicorn
+    uvicorn.run("chat:app", host="0.0.0.0", port=8202, reload=False, log_level="info")
diff --git a/chat.py_20260506 b/chat.py_20260506
new file mode 100644
index 0000000..7c709da
--- /dev/null
+++ b/chat.py_20260506
@@ -0,0 +1,76 @@
+from fastapi import FastAPI, WebSocket, WebSocketDisconnect
+from fastapi.responses import HTMLResponse
+from fastapi.staticfiles import StaticFiles
+from fastapi.templating import Jinja2Templates
+from fastapi.requests import Request
+import uvicorn
+
+app = FastAPI()
+
+# 挂载模板目录
+templates = Jinja2Templates(directory="templates")
+
+# 活跃连接列表
+active_connections = []
+
+# WebSocket 与昵称映射表
+usernames = {}
+
+# 首页路由
+@app.get("/")
+async def get(request: Request):
+    return templates.TemplateResponse("chat.html", {"request": request})
+
+# WebSocket 路由
+@app.websocket("/ws")
+async def websocket_endpoint(websocket: WebSocket):
+    await websocket.accept()
+    active_connections.append(websocket)
+    await broadcast_online_count()  # 一连上就广播在线人数
+
+    try:
+        # 接收第一个消息作为昵称
+        username = await websocket.receive_text()
+        usernames[websocket] = username
+
+        await broadcast(f"[系统]{username} 加入了聊天室")
+        await broadcast_online_count()
+
+        while True:
+            data = await websocket.receive_text()
+            await broadcast(f"{username}：{data}")
+
+    except WebSocketDisconnect:
+        active_connections.remove(websocket)
+        left_username = usernames.pop(websocket, "匿名用户")
+
+        await broadcast(f"[系统]{left_username} 离开了聊天室")
+        await broadcast_online_count()
+
+# 广播消息给所有连接
+async def broadcast(message: str):
+    to_remove = []
+    for connection in active_connections:
+        try:
+            await connection.send_text(message)
+        except:
+            to_remove.append(connection)
+    for conn in to_remove:
+        active_connections.remove(conn)
+        usernames.pop(conn, None)
+
+# 广播在线人数
+async def broadcast_online_count():
+    message = f"[人数]{len(active_connections)}"
+    to_remove = []
+    for conn in active_connections:
+        try:
+            await conn.send_text(message)
+        except:
+            to_remove.append(conn)
+    for conn in to_remove:
+        active_connections.remove(conn)
+        usernames.pop(conn, None)
+
+if __name__ == "__main__":
+    uvicorn.run("chat:app", host="0.0.0.0", port=8202)
\ No newline at end of file
diff --git a/chat.py_new b/chat.py_new
new file mode 100644
index 0000000..3d6db09
--- /dev/null
+++ b/chat.py_new
@@ -0,0 +1,160 @@
+from fastapi import FastAPI, WebSocket, WebSocketDisconnect, UploadFile, File, Request
+from fastapi.responses import HTMLResponse
+from fastapi.staticfiles import StaticFiles
+from fastapi.templating import Jinja2Templates
+import os
+import shutil
+import uuid
+import uvicorn
+
+app = FastAPI()
+
+# =========================
+# 基础配置
+# =========================
+
+BASE_DIR = os.path.dirname(os.path.abspath(__file__))
+
+TEMPLATE_DIR = os.path.join(BASE_DIR, "templates")
+UPLOAD_DIR = os.path.join(BASE_DIR, "uploads")
+
+MAX_FILE_SIZE = 10 * 1024 * 1024  # 10MB
+
+ALLOWED_IMAGE_EXTENSIONS = {"png", "jpg", "jpeg", "gif"}
+ALLOWED_VIDEO_EXTENSIONS = {"mp4", "webm"}
+
+# =========================
+# 目录初始化
+# =========================
+
+os.makedirs(UPLOAD_DIR, exist_ok=True)
+
+templates = Jinja2Templates(directory=TEMPLATE_DIR)
+app.mount("/uploads", StaticFiles(directory=UPLOAD_DIR), name="uploads")
+
+# =========================
+# WebSocket 状态
+# =========================
+
+active_connections: list[WebSocket] = []
+usernames: dict[WebSocket, str] = {}
+
+# =========================
+# 工具函数
+# =========================
+
+def get_ext(filename: str) -> str:
+    return filename.rsplit(".", 1)[-1].lower()
+
+def is_image(ext: str) -> bool:
+    return ext in ALLOWED_IMAGE_EXTENSIONS
+
+def is_video(ext: str) -> bool:
+    return ext in ALLOWED_VIDEO_EXTENSIONS
+
+# =========================
+# 页面路由
+# =========================
+
+@app.get("/", response_class=HTMLResponse)
+async def index(request: Request):
+    return templates.TemplateResponse("chat.html", {"request": request})
+
+# =========================
+# 文件上传接口
+# =========================
+
+@app.post("/upload")
+async def upload_file(file: UploadFile = File(...)):
+    ext = get_ext(file.filename)
+
+    if not (is_image(ext) or is_video(ext)):
+        return {"error": "不支持的文件类型"}
+
+    contents = await file.read()
+
+    if len(contents) > MAX_FILE_SIZE:
+        return {"error": "文件过大（最大 10MB）"}
+
+    filename = f"{uuid.uuid4().hex}.{ext}"
+    save_path = os.path.join(UPLOAD_DIR, filename)
+
+    with open(save_path, "wb") as f:
+        f.write(contents)
+
+    file_url = f"/uploads/{filename}"
+
+    if is_image(ext):
+        msg = f"IMG::{file_url}"
+    elif is_video(ext):
+        msg = f"VIDEO::{file_url}"
+    else:
+        msg = f"FILE::{file_url}"
+
+    await broadcast(msg)
+
+    return {"url": file_url}
+
+# =========================
+# WebSocket 聊天
+# =========================
+
+@app.websocket("/ws")
+async def websocket_endpoint(ws: WebSocket):
+    await ws.accept()
+    active_connections.append(ws)
+    await broadcast_online_count()
+
+    try:
+        # 首条消息作为用户名
+        username = await ws.receive_text()
+        usernames[ws] = username
+
+        await broadcast(f"SYSTEM::{username} 加入聊天室")
+        await broadcast_online_count()
+
+        while True:
+            text = await ws.receive_text()
+            await broadcast(f"TEXT::{username}::{text}")
+
+    except WebSocketDisconnect:
+        pass
+
+    finally:
+        if ws in active_connections:
+            active_connections.remove(ws)
+        name = usernames.pop(ws, "匿名用户")
+        await broadcast(f"SYSTEM::{name} 离开聊天室")
+        await broadcast_online_count()
+
+# =========================
+# 广播工具
+# =========================
+
+async def broadcast(message: str):
+    dead = []
+    for ws in active_connections:
+        try:
+            await ws.send_text(message)
+        except Exception:
+            dead.append(ws)
+
+    for ws in dead:
+        active_connections.remove(ws)
+        usernames.pop(ws, None)
+
+async def broadcast_online_count():
+    msg = f"COUNT::{len(active_connections)}"
+    await broadcast(msg)
+
+# =========================
+# 启动
+# =========================
+
+if __name__ == "__main__":
+    uvicorn.run(
+        "chat:app",
+        host="0.0.0.0",
+        port=8202,
+        reload=True
+    )
\ No newline at end of file
diff --git a/chat_history.txt b/chat_history.txt
new file mode 100644
index 0000000..e69de29
diff --git a/nightly_cleanup.log b/nightly_cleanup.log
new file mode 100644
index 0000000..7b3f5aa
--- /dev/null
+++ b/nightly_cleanup.log
@@ -0,0 +1,21 @@
+[2026-05-23 03:00:01] Starting nightly cleanup...
+{"status":"ok","backup":"chat_history_20260523_030001.txt","cleaned_uploads":0}
+[2026-05-23 03:00:01] Cleanup completed.
+[2026-05-24 03:00:01] Starting nightly cleanup...
+{"status":"ok","backup":"chat_history_20260524_030001.txt","cleaned_uploads":7}
+[2026-05-24 03:00:01] Cleanup completed.
+[2026-05-25 03:00:01] Starting nightly cleanup...
+{"status":"ok","backup":"chat_history_20260525_030001.txt","cleaned_uploads":0}
+[2026-05-25 03:00:01] Cleanup completed.
+[2026-05-26 03:00:01] Starting nightly cleanup...
+{"status":"ok","backup":"chat_history_20260526_030001.txt","cleaned_uploads":0}
+[2026-05-26 03:00:01] Cleanup completed.
+[2026-05-27 03:00:01] Starting nightly cleanup...
+{"status":"ok","backup":"chat_history_20260527_030001.txt","cleaned_uploads":0}
+[2026-05-27 03:00:01] Cleanup completed.
+[2026-05-28 03:00:01] Starting nightly cleanup...
+{"status":"ok","backup":"chat_history_20260528_030001.txt","cleaned_uploads":0}
+[2026-05-28 03:00:01] Cleanup completed.
+[2026-05-29 03:00:01] Starting nightly cleanup...
+{"status":"ok","backup":"chat_history_20260529_030001.txt","cleaned_uploads":0}
+[2026-05-29 03:00:01] Cleanup completed.
diff --git a/nightly_cleanup.sh b/nightly_cleanup.sh
new file mode 100755
index 0000000..5dab654
--- /dev/null
+++ b/nightly_cleanup.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+# Nightly cleanup for ChatHub
+# Backups chat history, clears log, removes old uploads
+# Called by cron at 03:00 daily
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+LOG_FILE="${SCRIPT_DIR}/nightly_cleanup.log"
+
+echo "[$(date '+%Y-%m-%d %H:%M:%S')] Starting nightly cleanup..." >> "$LOG_FILE"
+
+# Call the API endpoint
+curl -s -X POST http://localhost:8202/api/nightly-cleanup >> "$LOG_FILE" 2>&1
+
+echo "" >> "$LOG_FILE"
+echo "[$(date '+%Y-%m-%d %H:%M:%S')] Cleanup completed." >> "$LOG_FILE"
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..528606b
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,3 @@
+fastapi
+uvicorn
+jinja2
\ No newline at end of file
diff --git a/templates/chat.html b/templates/chat.html
new file mode 100644
index 0000000..6c2f705
--- /dev/null
+++ b/templates/chat.html
@@ -0,0 +1,821 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+    <title>ChatHub</title>
+    <style>
+        /* ── Reset & Base ─────────────────────────────── */
+        * { box-sizing: border-box; margin: 0; padding: 0; }
+        html, body {
+            height: 100%;
+            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
+            font-size: 15px;
+            -webkit-font-smoothing: antialiased;
+            -moz-osx-font-smoothing: grayscale;
+        }
+
+        /* ── Theme Variables ──────────────────────────── */
+        :root {
+            /* Dark (Telegram Dark) — default */
+            --bg-app: #0e1621;
+            --sidebar-bg: #17212b;
+            --sidebar-hover: #202b36;
+            --sidebar-header-bg: #17212b;
+            --sidebar-header-border: rgba(255,255,255,0.04);
+            --chat-bg: #0e1621;
+            --header-bg: #17212b;
+            --header-border: rgba(255,255,255,0.04);
+            --bubble-self: #2b5278;
+            --bubble-self-text: #e8e8e8;
+            --bubble-other: #182533;
+            --bubble-other-text: #e8e8e8;
+            --input-bg: #17212b;
+            --input-border: rgba(255,255,255,0.04);
+            --input-focus-border: #5f9cea;
+            --input-inner: #242f3d;
+            --text-primary: #e8e8e8;
+            --text-secondary: #858e99;
+            --text-muted: #5f6773;
+            --accent: #5f9cea;
+            --accent-hover: #7bafed;
+            --online-green: #4fae4f;
+            --red: #e9575f;
+            --shadow: none;
+            --radius-sm: 6px;
+            --radius-md: 10px;
+            --radius-lg: 14px;
+            --sidebar-width: 300px;
+            --header-height: 48px;
+            --footer-height: 52px;
+            --transition: 0.15s ease;
+        }
+
+        /* Light theme */
+        [data-theme="light"] {
+            --bg-app: #e6ebee;
+            --sidebar-bg: #fff;
+            --sidebar-hover: #f2f6fa;
+            --sidebar-header-bg: #5682a3;
+            --sidebar-header-border: #d9dee1;
+            --chat-bg: #e6ebee;
+            --header-bg: #fff;
+            --header-border: #d9dee1;
+            --bubble-self: #effdde;
+            --bubble-self-text: #000;
+            --bubble-other: #fff;
+            --bubble-other-text: #000;
+            --input-bg: #fff;
+            --input-border: #d9dee1;
+            --input-focus-border: #5b9bd5;
+            --input-inner: #f2f6fa;
+            --text-primary: #222;
+            --text-secondary: #888;
+            --text-muted: #aaa;
+            --accent: #5b9bd5;
+            --accent-hover: #4a8bc5;
+            --online-green: #3dd68c;
+            --red: #f0566a;
+            --shadow: 0 1px 2px rgba(0,0,0,0.04);
+        }
+
+        body {
+            background: var(--bg-app);
+            color: var(--text-primary);
+        }
+
+        /* ── App Layout ───────────────────────────────── */
+        #app {
+            display: flex;
+            height: 100vh;
+            width: 100%;
+            overflow: hidden;
+            background: var(--bg-app);
+        }
+
+        /* ═══════════════ Sidebar ═══════════════ */
+        .sidebar {
+            width: var(--sidebar-width);
+            min-width: var(--sidebar-width);
+            background: var(--sidebar-bg);
+            display: flex;
+            flex-direction: column;
+            border-right: 1px solid var(--sidebar-header-border);
+        }
+
+        /* Sidebar header — height aligned with chat header */
+        .sidebar-header {
+            height: var(--header-height);
+            min-height: var(--header-height);
+            background: var(--sidebar-header-bg);
+            display: flex;
+            align-items: center;
+            justify-content: space-between;
+            padding: 0 16px;
+            border-bottom: 1px solid var(--sidebar-header-border);
+            flex-shrink: 0;
+        }
+        .sidebar-title {
+            font-size: 16px;
+            font-weight: 700;
+            color: var(--text-primary);
+            letter-spacing: 0.2px;
+            display: flex;
+            align-items: center;
+            gap: 6px;
+        }
+        .sidebar-title-icon {
+            font-size: 18px;
+        }
+        .sidebar-badge {
+            font-size: 11px;
+            color: var(--text-secondary);
+            background: rgba(255,255,255,0.06);
+            padding: 2px 10px;
+            border-radius: 10px;
+        }
+
+        .sidebar-search {
+            padding: 8px 12px;
+            flex-shrink: 0;
+            border-bottom: 1px solid var(--sidebar-header-border);
+        }
+        .search-input {
+            width: 100%;
+            background: var(--input-inner);
+            border: none;
+            border-radius: var(--radius-sm);
+            padding: 7px 12px;
+            font-size: 13px;
+            color: var(--text-primary);
+            outline: none;
+            pointer-events: none;
+        }
+        .search-input::placeholder { color: var(--text-muted); }
+
+        .sidebar-section {
+            font-size: 11px;
+            text-transform: uppercase;
+            color: var(--text-secondary);
+            padding: 10px 16px 4px;
+            letter-spacing: 0.6px;
+            font-weight: 600;
+            flex-shrink: 0;
+        }
+
+        .member-list {
+            flex: 1;
+            overflow-y: auto;
+        }
+        .member-list::-webkit-scrollbar { width: 4px; }
+        .member-list::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.06); border-radius: 4px; }
+        [data-theme="light"] .member-list::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.08); }
+
+        .member-item {
+            display: flex;
+            align-items: center;
+            gap: 11px;
+            padding: 8px 16px;
+            cursor: pointer;
+            transition: background var(--transition);
+        }
+        .member-item:hover { background: var(--sidebar-hover); }
+
+        .member-avatar {
+            width: 38px;
+            height: 38px;
+            border-radius: 50%;
+            flex-shrink: 0;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            font-size: 15px;
+            font-weight: 600;
+            color: #fff;
+            position: relative;
+        }
+        .member-avatar-dot {
+            position: absolute;
+            bottom: 1px;
+            right: -1px;
+            width: 10px;
+            height: 10px;
+            border-radius: 50%;
+            background: var(--online-green);
+            border: 2px solid var(--sidebar-bg);
+        }
+
+        .member-info { flex: 1; min-width: 0; }
+        .member-name {
+            font-size: 14px;
+            font-weight: 500;
+            color: var(--text-primary);
+            overflow: hidden;
+            text-overflow: ellipsis;
+            white-space: nowrap;
+        }
+        .member-sub {
+            font-size: 11px;
+            color: var(--text-secondary);
+            margin-top: 1px;
+        }
+        .member-tag {
+            font-size: 11px;
+            color: var(--accent);
+            background: rgba(95,156,234,0.12);
+            padding: 1px 8px;
+            border-radius: 8px;
+            font-weight: 500;
+        }
+        [data-theme="light"] .member-tag { background: #e8f0f7; }
+
+        .sidebar-empty {
+            padding: 30px 16px;
+            text-align: center;
+            color: var(--text-muted);
+            font-size: 13px;
+        }
+
+        /* Sidebar footer — height aligned with input area */
+        .sidebar-footer {
+            height: var(--footer-height);
+            min-height: var(--footer-height);
+            display: flex;
+            align-items: center;
+            gap: 6px;
+            padding: 0 16px;
+            border-top: 1px solid var(--sidebar-header-border);
+            font-size: 12px;
+            color: var(--text-secondary);
+            flex-shrink: 0;
+        }
+        .footer-dot {
+            width: 7px;
+            height: 7px;
+            border-radius: 50%;
+            flex-shrink: 0;
+        }
+        .footer-dot.online { background: var(--online-green); }
+        .footer-dot.offline { background: var(--red); }
+        .footer-dot.connecting { background: #f59e0b; animation: pulse 1s infinite; }
+        @keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.3} }
+
+        /* ═══════════════ Main (Chat) ═══════════════ */
+        .main {
+            flex: 1;
+            display: flex;
+            flex-direction: column;
+            min-width: 0;
+            background: var(--chat-bg);
+            position: relative;
+        }
+
+        /* Chat header — height aligned with sidebar header */
+        .chat-header {
+            height: var(--header-height);
+            min-height: var(--header-height);
+            background: var(--header-bg);
+            border-bottom: 1px solid var(--header-border);
+            display: flex;
+            align-items: center;
+            justify-content: space-between;
+            padding: 0 16px;
+            flex-shrink: 0;
+        }
+        .chat-header-left {
+            display: flex;
+            align-items: center;
+            gap: 10px;
+            min-width: 0;
+        }
+        .chat-header-avatar {
+            width: 32px;
+            height: 32px;
+            border-radius: 50%;
+            background: var(--accent);
+            color: #fff;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            font-size: 14px;
+            flex-shrink: 0;
+        }
+        .chat-header-info { line-height: 1.2; min-width: 0; }
+        .chat-header-name {
+            font-size: 15px;
+            font-weight: 600;
+            color: var(--text-primary);
+            overflow: hidden;
+            text-overflow: ellipsis;
+            white-space: nowrap;
+        }
+        .chat-header-status {
+            font-size: 11px;
+            color: var(--text-secondary);
+        }
+        .chat-header-right {
+            display: flex;
+            gap: 6px;
+            align-items: center;
+            flex-shrink: 0;
+        }
+        .header-btn {
+            width: 34px;
+            height: 34px;
+            border: none;
+            border-radius: 50%;
+            background: transparent;
+            color: var(--text-secondary);
+            font-size: 17px;
+            cursor: pointer;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            transition: background var(--transition);
+        }
+        .header-btn:hover {
+            background: var(--sidebar-hover);
+            color: var(--text-primary);
+        }
+        .header-btn:active { transform: scale(0.9); }
+
+        /* ── Messages ── */
+        #chatLog {
+            flex: 1;
+            overflow-y: auto;
+            padding: 12px 16px 4px;
+            display: flex;
+            flex-direction: column;
+            gap: 3px;
+        }
+        #chatLog::-webkit-scrollbar { width: 5px; }
+        #chatLog::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.05); border-radius: 5px; }
+        [data-theme="light"] #chatLog::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.06); }
+
+        #emptyTip {
+            text-align: center;
+            color: var(--text-muted);
+            padding: 80px 0;
+            user-select: none;
+        }
+        #emptyTip .empty-icon { font-size: 34px; margin-bottom: 8px; opacity: 0.25; }
+        #emptyTip .empty-t1 { font-size: 14px; }
+        #emptyTip .empty-t2 { font-size: 12px; margin-top: 4px; opacity: 0.6; }
+
+        /* ── Bubbles ── */
+        .msg-item {
+            display: flex;
+            flex-direction: column;
+            max-width: 80%;
+            animation: inMsg 0.15s ease;
+        }
+        @keyframes inMsg { from{opacity:0;transform:translateY(4px)} to{opacity:1;transform:translateY(0)} }
+        .msg-item.self   { align-self: flex-start; align-items: flex-start; }
+        .msg-item.other  { align-self: flex-start; align-items: flex-start; }
+        .msg-item.system { align-self: center; align-items: center; max-width: 94%; }
+
+        .msg-row {
+            display: flex;
+            align-items: flex-end;
+            gap: 6px;
+            max-width: 100%;
+        }
+        .msg-item.self .msg-row,
+        .msg-item.other .msg-row { flex-direction: row; }
+
+        .msg-avatar {
+            width: 26px;
+            height: 26px;
+            border-radius: 50%;
+            flex-shrink: 0;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            font-size: 11px;
+            font-weight: 600;
+            color: #fff;
+            opacity: 0.9;
+        }
+
+        .msg-body { min-width: 0; }
+
+        .msg-sender {
+            font-size: 11px;
+            font-weight: 600;
+            color: var(--accent);
+            margin-bottom: 1px;
+            padding-left: 2px;
+        }
+        .msg-item.self .msg-sender { display: block; }
+
+        .msg-bubble {
+            padding: 6px 12px;
+            border-radius: var(--radius-lg);
+            font-size: 14px;
+            line-height: 1.5;
+            word-wrap: break-word;
+            white-space: pre-wrap;
+            box-shadow: var(--shadow);
+        }
+        .msg-item.self .msg-bubble {
+            background: var(--bubble-other);
+            color: var(--bubble-other-text);
+            border-bottom-left-radius: 3px;
+            border-left: 3px solid var(--accent);
+        }
+        .msg-item.other .msg-bubble {
+            background: var(--bubble-other);
+            color: var(--bubble-other-text);
+            border-bottom-left-radius: 3px;
+        }
+        .msg-item.system .msg-bubble {
+            background: transparent;
+            color: var(--text-muted);
+            font-size: 12px;
+            text-align: center;
+            padding: 1px 6px;
+            box-shadow: none;
+        }
+
+        .msg-time {
+            font-size: 10px;
+            color: var(--text-muted);
+            margin-top: 1px;
+            padding: 0 4px;
+        }
+        .msg-item.self .msg-time,
+        .msg-item.other .msg-time { text-align: left; }
+
+        /* Media */
+        .msg-media {
+            max-width: 200px;
+            max-height: 230px;
+            border-radius: var(--radius-md);
+            cursor: pointer;
+            display: block;
+            transition: opacity 0.15s;
+            margin: -1px 0;
+        }
+        .msg-media:hover { opacity: 0.92; }
+        video.msg-media { cursor: default; }
+        video.msg-media:hover { opacity: 1; }
+
+        .preview-overlay {
+            position: fixed; inset: 0;
+            background: rgba(0,0,0,0.9);
+            z-index: 9999;
+            display: flex; align-items: center; justify-content: center;
+            cursor: pointer;
+            animation: ovIn 0.15s ease;
+        }
+        @keyframes ovIn { from{opacity:0} to{opacity:1} }
+        .preview-overlay img, .preview-overlay video {
+            max-width: 92vw; max-height: 92vh;
+            object-fit: contain;
+            border-radius: var(--radius-md);
+        }
+
+        /* ── Input Area — height aligned with sidebar footer ── */
+        .input-area {
+            height: var(--footer-height);
+            min-height: var(--footer-height);
+            background: var(--input-bg);
+            border-top: 1px solid var(--header-border);
+            display: flex;
+            align-items: center;
+            gap: 6px;
+            padding: 0 12px;
+            flex-shrink: 0;
+        }
+        .input-wrap {
+            flex: 1;
+            display: flex;
+            align-items: center;
+            background: var(--input-inner);
+            border: 1px solid transparent;
+            border-radius: var(--radius-lg);
+            padding: 0 2px 0 0;
+            transition: border-color var(--transition), background var(--transition);
+            height: 36px;
+        }
+        .input-wrap:focus-within {
+            border-color: var(--input-focus-border);
+            background: var(--input-bg);
+        }
+        #messageInput {
+            flex: 1;
+            background: transparent;
+            border: none;
+            color: var(--text-primary);
+            font-size: 14px;
+            padding: 0 12px;
+            outline: none;
+            font-family: inherit;
+            line-height: 36px;
+            height: 36px;
+            overflow: hidden;
+            resize: none;
+        }
+        #messageInput::placeholder { color: var(--text-muted); }
+
+        .btn {
+            width: 34px;
+            height: 34px;
+            border: none;
+            border-radius: 50%;
+            cursor: pointer;
+            font-size: 17px;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            background: transparent;
+            color: var(--text-secondary);
+            transition: all var(--transition);
+            flex-shrink: 0;
+        }
+        .btn:hover { background: var(--sidebar-hover); color: var(--text-primary); }
+        .btn:active { transform: scale(0.88); }
+
+        .btn-send {
+            background: var(--accent);
+            color: #fff;
+            font-size: 16px;
+        }
+        .btn-send:hover { background: var(--accent-hover); color: #fff; }
+        .btn-send:active { transform: scale(0.88); }
+
+        #fileInput { display: none; }
+
+        .upload-progress {
+            height: 2px;
+            background: transparent;
+            display: none;
+            flex-shrink: 0;
+        }
+        .upload-progress.active { display: block; }
+        .upload-progress-bar {
+            height: 100%;
+            width: 0%;
+            background: var(--accent);
+            transition: width 0.3s;
+        }
+
+        /* ── Responsive ── */
+        @media (max-width: 700px) {
+            .sidebar { display: none; }
+            .msg-item { max-width: 92%; }
+            .msg-media { max-width: 140px; max-height: 170px; }
+            #chatLog { padding: 8px 8px 2px; }
+        }
+    </style>
+</head>
+<body>
+<div id="app">
+    <!-- ═══ Sidebar ═══ -->
+    <div class="sidebar">
+        <div class="sidebar-header">
+            <div class="sidebar-title">
+                <span class="sidebar-title-icon">💬</span>ChatHub
+            </div>
+            <span class="sidebar-badge" id="sidebarBadge">0</span>
+        </div>
+        <div class="sidebar-search">
+            <input class="search-input" placeholder="搜索在线成员..." readonly>
+        </div>
+        <div class="sidebar-section">在线成员</div>
+        <div class="member-list" id="memberList">
+            <div class="sidebar-empty" id="memberEmpty">🫧 暂无在线成员</div>
+        </div>
+        <div class="sidebar-footer">
+            <span class="footer-dot offline" id="footerDot"></span>
+            <span id="footerText">连接中...</span>
+        </div>
+    </div>
+
+    <!-- ═══ Main ═══ -->
+    <div class="main">
+        <!-- Chat Header -->
+        <div class="chat-header">
+            <div class="chat-header-left">
+                <div class="chat-header-avatar">💬</div>
+                <div class="chat-header-info">
+                    <div class="chat-header-name">无痕聊天室</div>
+                    <div class="chat-header-status" id="headerStatus">🟡 连接中...</div>
+                </div>
+            </div>
+            <div class="chat-header-right">
+                <span class="header-btn" id="themeToggle" title="切换主题">🌙</span>
+            </div>
+        </div>
+
+        <!-- Messages -->
+        <div id="chatLog">
+            <div id="emptyTip">
+                <div class="empty-icon">🫧</div>
+                <div class="empty-t1">聊天记录为空</div>
+                <div class="empty-t2">发出一条消息开始聊天吧</div>
+            </div>
+        </div>
+
+        <!-- Upload Progress -->
+        <div class="upload-progress" id="uploadProgress">
+            <div class="upload-progress-bar" id="uploadProgressBar"></div>
+        </div>
+
+        <!-- Input -->
+        <div class="input-area">
+            <input type="file" id="fileInput" accept="image/*,video/*">
+            <div class="input-wrap">
+                <textarea id="messageInput" placeholder="输入消息..." rows="1" maxlength="2000"></textarea>
+            </div>
+            <button class="btn" id="uploadBtn" title="发送图片/视频">📎</button>
+            <button class="btn btn-send" id="sendBtn">➤</button>
+        </div>
+    </div>
+</div>
+
+<script>
+(function() {
+    'use strict';
+
+    // ── Username ────────────────────────────────────────
+    var username = localStorage.getItem('chat_username');
+    if (!username) {
+        username = prompt('请输入你的昵称：') || ('匿名' + Math.floor(Math.random() * 9999));
+        username = username.trim().slice(0, 20);
+        localStorage.setItem('chat_username', username);
+    }
+
+    // ── Theme ───────────────────────────────────────────
+    var themeToggle = document.getElementById('themeToggle');
+    var currentTheme = localStorage.getItem('chat_theme') || 'dark';
+    document.documentElement.setAttribute('data-theme', currentTheme);
+    themeToggle.textContent = currentTheme === 'dark' ? '🌙' : '☀️';
+
+    themeToggle.onclick = function() {
+        var next = currentTheme === 'dark' ? 'light' : 'dark';
+        currentTheme = next;
+        document.documentElement.setAttribute('data-theme', next);
+        localStorage.setItem('chat_theme', next);
+        themeToggle.textContent = next === 'dark' ? '🌙' : '☀️';
+    };
+
+    // ── DOM ─────────────────────────────────────────────
+    var chatLog    = document.getElementById('chatLog');
+    var emptyTip   = document.getElementById('emptyTip');
+    var memberList = document.getElementById('memberList');
+    var emptyMsg   = document.getElementById('memberEmpty');
+    var sidebarBadge = document.getElementById('sidebarBadge');
+    var footerTxt = document.getElementById('footerText');
+    var footerDot = document.getElementById('footerDot');
+    var headerSt  = document.getElementById('headerStatus');
+    var msgInput  = document.getElementById('messageInput');
+    var sendBtn   = document.getElementById('sendBtn');
+    var upBtn     = document.getElementById('uploadBtn');
+    var fileInp   = document.getElementById('fileInput');
+    var progEl    = document.getElementById('uploadProgress');
+    var progBar   = document.getElementById('uploadProgressBar');
+
+    // ── Helpers ─────────────────────────────────────────
+    function esc(s) { return String(s).replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;'); }
+
+    function setStatus(state) {
+        if (state === 'connected') {
+            headerSt.textContent = '🟢 已连接';
+            footerDot.className = 'footer-dot online';
+            footerTxt.textContent = '已连接';
+        } else if (state === 'connecting') {
+            headerSt.textContent = '🟡 连接中...';
+            footerDot.className = 'footer-dot connecting';
+            footerTxt.textContent = '连接中...';
+        } else {
+            headerSt.textContent = '🔴 已断开';
+            footerDot.className = 'footer-dot offline';
+            footerTxt.textContent = '已断开，重连中...';
+        }
+    }
+
+    // ── Append message ─────────────────────────────────
+    function appendMsg(cls, sender, html, ts) {
+        if (emptyTip && emptyTip.parentNode) emptyTip.style.display = 'none';
+        var d = document.createElement('div');
+        d.className = 'msg-item ' + cls;
+        var t = ts ? '<div class="msg-time">' + esc(ts) + '</div>' : '';
+        if (cls === 'system') {
+            d.innerHTML = '<div class="msg-bubble">' + html + '</div>';
+        } else {
+            var nameTag = cls === 'self' ? '<span class="member-tag" style="font-size:10px;margin-left:4px;vertical-align:middle;">我</span>' : '';
+            d.innerHTML =
+                '<div class="msg-row">' +
+                    '<div class="msg-avatar" style="background:' + avColor(sender) + '">' + avL(sender) + '</div>' +
+                    '<div class="msg-body">' +
+                        '<div class="msg-sender">' + esc(sender) + nameTag + '</div>' +
+                        '<div class="msg-bubble">' + html + '</div>' + t +
+                    '</div>' +
+                '</div>';
+        }
+        chatLog.appendChild(d);
+        chatLog.scrollTop = chatLog.scrollHeight;
+    }
+
+    function avL(n) { return (n&&n[0])?n[0].toUpperCase():'?'; }
+
+    var _colors = ['#5f9cea','#e17076','#7bc862','#e5c441','#65aadd','#a695e7','#ee7a6f','#6bc9b6','#f0906f','#b0a0e0'];
+    function avColor(n) {
+        var h=0; for(var i=0;i<n.length;i++) h=((h<<5)-h)+n.charCodeAt(i)|0;
+        return _colors[Math.abs(h)%_colors.length];
+    }
+
+    // ── WebSocket ───────────────────────────────────────
+    var ws = null, rt = null, wsc = false;
+    function connect() {
+        if(ws&&(ws.readyState===1||ws.readyState===0)) return;
+        setStatus('connecting');
+        var p = location.protocol==='https:'?'wss':'ws';
+        ws = new WebSocket(p+'://'+location.host+'/wschat');
+        ws.onopen = function(){ ws.send(username); setStatus('connected'); wsc=true; refresh(); };
+        ws.onmessage = function(e){ handle(e.data); };
+        ws.onclose = function(){ wsc=false; setStatus('offline'); if(rt)clearTimeout(rt); rt=setTimeout(connect,2000); };
+    }
+
+    function handle(msg) {
+        if(msg.indexOf('COUNT::')===0) {
+            var c = parseInt(msg.substring(6),10)||0;
+            sidebarBadge.textContent = c;
+            return;
+        }
+        if(msg.indexOf('MEMBERS::')===0) {
+            try { var p=JSON.parse(msg.substring(9)); if(p.type==='members') render(p.data||[]); } catch(e){}
+            return;
+        }
+        var c1=msg.indexOf('::'); if(c1<0)return;
+        var tp=msg.substring(0,c1), bd=msg.substring(c1+2);
+        if(tp==='SYSTEM') { appendMsg('system','',esc(bd),''); refresh(); }
+        else if(tp==='TEXT') { var c2=bd.indexOf('::'); if(c2<0)return; appendMsg(bd.substring(0,c2)===username?'self':'other',bd.substring(0,c2),esc(bd.substring(c2+2)),''); }
+        else if(tp==='IMG') { var c2=bd.indexOf('::'); if(c2<0)return; appendMsg(bd.substring(0,c2)===username?'self':'other',bd.substring(0,c2),'<img class="msg-media" src="'+bd.substring(c2+2)+'" onclick="previewMedia(this.src)" loading="lazy">',''); }
+        else if(tp==='VIDEO') { var c2=bd.indexOf('::'); if(c2<0)return; appendMsg(bd.substring(0,c2)===username?'self':'other',bd.substring(0,c2),'<video class="msg-media" src="'+bd.substring(c2+2)+'" controls preload="metadata"></video>',''); }
+    }
+
+    // ── Member list ─────────────────────────────────────
+    function render(members) {
+        memberList.innerHTML = '';
+        if(!members||!members.length) {
+            memberList.innerHTML = '<div class="sidebar-empty">🫧 暂无在线成员</div>';
+            sidebarBadge.textContent = '0';
+            return;
+        }
+        sidebarBadge.textContent = members.length;
+        var s = members.slice().sort(function(a,b){ if(a===username)return-1;if(b===username)return1;return a.localeCompare(b); });
+        for(var i=0;i<s.length;i++) {
+            var n=s[i], me=n===username;
+            var d=document.createElement('div'); d.className='member-item';
+            d.innerHTML =
+                '<div class="member-avatar" style="background:'+avColor(n)+'">'+
+                    avL(n)+'<span class="member-avatar-dot"></span></div>'+
+                '<div class="member-info">'+
+                    '<div class="member-name">'+esc(n)+'</div>'+
+                    '<div class="member-sub">'+(me?'在线 (我)':'在线')+'</div></div>'+
+                (me?'<span class="member-tag">我</span>':'');
+            memberList.appendChild(d);
+        }
+    }
+
+    var f = false;
+    function refresh(){ if(f)return; f=true; fetch('/members').then(function(r){return r.ok?r.json():Promise.reject();}).then(function(d){render(d.members||[]);}).catch(function(){}).finally(function(){f=false;}); }
+    setInterval(function(){if(wsc)refresh();},5000);
+
+    // ── Send ────────────────────────────────────────────
+    function send(t){ if(!t||!t.trim())return false; if(!ws||ws.readyState!==1){appendMsg('system','','⚠️ 连接已断开','');return false;} ws.send(t.trim()); return true; }
+    sendBtn.onclick = function(){ var v=msgInput.value; if(send(v)){msgInput.value='';msgInput.style.height='36px';} };
+    msgInput.addEventListener('keydown',function(e){
+        if(e.key==='Enter'&&!e.shiftKey){ e.preventDefault(); var v=msgInput.value; if(send(v)){msgInput.value='';msgInput.style.height='36px';} }
+    });
+
+    // ── Upload ──────────────────────────────────────────
+    upBtn.onclick = function(){ fileInp.click(); };
+    fileInp.addEventListener('change',function(){
+        var f=this.files[0]; if(!f)return;
+        if(f.size>10*1024*1024){ appendMsg('system','','⚠️ 文件过大（'+(f.size/1024/1024).toFixed(1)+'MB），最大 10MB',''); fileInp.value=''; return; }
+        var fd=new FormData(); fd.append('file',f); fd.append('sender',username);
+        progEl.classList.add('active'); progBar.style.width='25%';
+        fetch('/upload',{method:'POST',body:fd})
+            .then(function(r){ if(!r.ok)return r.json().then(function(d){throw new Error(d.error||'上传失败');}); return r.json(); })
+            .then(function(){ progBar.style.width='100%'; })
+            .catch(function(e){ progBar.style.width='100%'; appendMsg('system','','⚠️ '+esc(e.message),''); })
+            .finally(function(){ setTimeout(function(){progEl.classList.remove('active');progBar.style.width='0%';},600); fileInp.value=''; });
+    });
+
+    // ── Preview ─────────────────────────────────────────
+    window.previewMedia = function(s){
+        var o=document.createElement('div'); o.className='preview-overlay';
+        var e=s.match(/\.(png|jpg|jpeg|gif|webp|bmp)(\?|$)/i)?(function(){var i=new Image();i.src=s;return i;})():(function(){var v=document.createElement('video');v.src=s;v.controls=true;v.autoplay=true;return v;})();
+        o.appendChild(e); o.onclick=function(){document.body.removeChild(o);}; document.body.appendChild(o);
+    };
+
+    // ── Init ────────────────────────────────────────────
+    connect();
+    refresh();
+})();
+</script>
+</body>
+</html>
diff --git a/templates/chat.html_ b/templates/chat.html_
new file mode 100644
index 0000000..d77f6e7
--- /dev/null
+++ b/templates/chat.html_
@@ -0,0 +1,199 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>纵有千古、横有八荒</title>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+    <style>
+        html, body {
+            margin: 0;
+            padding: 0;
+            height: 100%;
+            font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+            background: linear-gradient(135deg, #eceff4, #f5f7fa);
+        }
+
+        #chat-container {
+            display: flex;
+            flex-direction: column;
+            height: 100vh;
+            max-width: 800px;
+            margin: 0 auto;
+            background: #ffffffcc;
+            backdrop-filter: blur(8px);
+            border-radius: 12px;
+            overflow: hidden;
+        }
+
+        #chatLog {
+            flex: 1;
+            padding: 16px;
+            overflow-y: auto;
+            background: #f9f9fb;
+            display: flex;
+            flex-direction: column;
+            gap: 8px;
+        }
+
+        .message {
+            max-width: 75%;
+            padding: 10px 14px;
+            border-radius: 16px;
+            font-size: 14px;
+            line-height: 1.5;
+            word-wrap: break-word;
+            white-space: pre-wrap;
+        }
+
+        .self {
+            align-self: flex-end;
+            background: linear-gradient(135deg, #409eff, #66b1ff);
+            color: #fff;
+            border-bottom-right-radius: 4px;
+        }
+
+        .other {
+            align-self: flex-start;
+            background: #e5e5ea;
+            color: #333;
+            border-bottom-left-radius: 4px;
+        }
+
+        #input-container {
+            padding: 12px;
+            background-color: #f4f6f8;
+            display: flex;
+            gap: 10px;
+            border-top: 1px solid #e0e0e0;
+            align-items: flex-end;
+        }
+
+        #messageInput {
+            flex: 1;
+            padding: 10px 14px;
+            border: 1px solid #ccc;
+            border-radius: 10px;
+            font-size: 14px;
+            resize: none;
+            min-height: 42px;
+            max-height: 150px;
+            background: #fff;
+            box-shadow: inset 0 1px 2px rgba(0,0,0,0.05);
+        }
+
+        #messageInput:focus {
+            border-color: #999;
+            outline: none;
+        }
+
+        #sendButton {
+            padding: 10px 18px;
+            background: linear-gradient(135deg, #409eff, #66b1ff);
+            color: #fff;
+            border: none;
+            border-radius: 8px;
+            cursor: pointer;
+            font-size: 14px;
+            flex-shrink: 0;
+            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+        }
+
+        #sendButton:hover {
+            background: linear-gradient(135deg, #66b1ff, #85c1ff);
+        }
+
+        /* 手机适配 */
+        @media screen and (max-width: 600px) {
+            #chat-container {
+                max-width: 100%;
+                border-radius: 0;
+            }
+
+            .message {
+                font-size: 15px;
+                padding: 10px 14px;
+            }
+
+            #messageInput {
+                font-size: 16px;
+                padding: 10px 14px;
+            }
+
+            #sendButton {
+                padding: 10px 14px;
+                font-size: 15px;
+            }
+
+            #input-container {
+                padding: 10px;
+                gap: 8px;
+            }
+        }
+    </style>
+</head>
+<body>
+<div id="chat-container">
+    <div id="chatLog"></div>
+    <div id="input-container">
+        <textarea id="messageInput" placeholder="来说点什么吧..." rows="1"></textarea>
+        <button id="sendButton" onclick="sendMessage()">发送</button>
+    </div>
+</div>
+
+<script>
+    let username = localStorage.getItem("chat_username");
+    if (!username) {
+        username = prompt("请输入你的昵称：");
+        if (!username) {
+            username = "匿名用户";
+        }
+        localStorage.setItem("chat_username", username);
+    }
+
+    let ws_scheme = window.location.protocol === "https:" ? "wss" : "ws";
+    let ws = new WebSocket(ws_scheme + "://" + window.location.host + "/ws");
+
+    ws.onmessage = function(event) {
+        const chatLog = document.getElementById("chatLog");
+        const messageDiv = document.createElement("div");
+
+        // 判断是否是自己发的
+        if (event.data.startsWith(username + "：")) {
+            messageDiv.className = "message self";
+            messageDiv.textContent = event.data.replace(username + "：", "我：");
+        } else {
+            messageDiv.className = "message other";
+            messageDiv.textContent = event.data;
+        }
+
+        chatLog.appendChild(messageDiv);
+        chatLog.scrollTop = chatLog.scrollHeight;
+    };
+
+    function sendMessage() {
+        const input = document.getElementById("messageInput");
+        if (input.value.trim() !== "") {
+            const message = username + "：" + input.value.trim();
+            ws.send(message);
+            input.value = "";
+            adjustInputHeight();
+        }
+    }
+
+    document.getElementById("messageInput").addEventListener("keydown", function(event) {
+        if (event.key === "Enter" && !event.shiftKey) {
+            event.preventDefault();
+            sendMessage();
+        }
+    });
+
+    document.getElementById("messageInput").addEventListener("input", adjustInputHeight);
+
+    function adjustInputHeight() {
+        const input = document.getElementById("messageInput");
+        input.style.height = "auto";
+        input.style.height = (input.scrollHeight) + "px";
+    }
+</script>
+</body>
+</html>
\ No newline at end of file
diff --git a/templates/chat.html_20260506 b/templates/chat.html_20260506
new file mode 100644
index 0000000..f5af34e
--- /dev/null
+++ b/templates/chat.html_20260506
@@ -0,0 +1,354 @@
+<!DOCTYPE html>
+<head>
+    <title>无痕聊天室</title>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+    <style>
+        html, body {
+            margin: 0;
+            padding: 0;
+            height: 100%;
+            font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+            background: linear-gradient(135deg, #eceff4, #f5f7fa);
+            transition: background 0.3s, color 0.3s;
+        }
+
+        body.dark {
+            background: #1e1e1e;
+            color: #ccc;
+        }
+
+        #chat-container {
+            display: flex;
+            flex-direction: column;
+            height: 100vh;
+            max-width: 800px;
+            margin: 0 auto;
+            background: #ffffffcc;
+            backdrop-filter: blur(8px);
+            border-radius: 12px;
+            overflow: hidden;
+            position: relative;
+        }
+
+        body.dark #chat-container {
+            background: #2c2c2ccc;
+        }
+
+        #chatLog {
+            flex: 1;
+            padding: 16px;
+            overflow-y: auto;
+            background: #f9f9fb;
+            display: flex;
+            flex-direction: column;
+            gap: 8px;
+        }
+
+        body.dark #chatLog {
+            background: #2a2a2a;
+        }
+
+        .message {
+            max-width: 75%;
+            padding: 10px 14px;
+            border-radius: 16px;
+            font-size: 14px;
+            line-height: 1.5;
+            word-wrap: break-word;
+            white-space: pre-wrap;
+            display: flex;
+            align-items: center;
+            justify-content: space-between;
+        }
+
+        .self {
+            align-self: flex-end;
+            background: linear-gradient(135deg, #409eff, #66b1ff);
+            color: #fff;
+            border-bottom-right-radius: 4px;
+        }
+
+        .other {
+            align-self: flex-start;
+            background: #e5e5ea;
+            color: #333;
+            border-bottom-left-radius: 4px;
+        }
+
+        .system {
+            align-self: center;
+            background: transparent;
+            color: #999;
+            font-size: 13px;
+            padding: 4px 8px;
+            border-radius: 8px;
+        }
+
+        #input-container {
+            padding: 12px;
+            background-color: #f4f6f8;
+            display: flex;
+            gap: 10px;
+            border-top: 1px solid #e0e0e0;
+            align-items: flex-end;
+        }
+
+        body.dark #input-container {
+            background-color: #333;
+            border-color: #444;
+        }
+
+        #messageInput {
+            flex: 1;
+            padding: 10px 14px;
+            border: 1px solid #ccc;
+            border-radius: 10px;
+            font-size: 14px;
+            resize: none;
+            min-height: 42px;
+            max-height: 150px;
+            background: #fff;
+            box-shadow: inset 0 1px 2px rgba(0,0,0,0.05);
+        }
+
+        body.dark #messageInput {
+            background: #444;
+            color: #ccc;
+            border: 1px solid #666;
+        }
+
+        #sendButton {
+            padding: 10px 18px;
+            background: linear-gradient(135deg, #409eff, #66b1ff);
+            color: #fff;
+            border: none;
+            border-radius: 8px;
+            cursor: pointer;
+            font-size: 14px;
+            flex-shrink: 0;
+            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+        }
+
+        #sendButton:hover {
+            background: linear-gradient(135deg, #66b1ff, #85c1ff);
+        }
+
+        #onlineCount {
+            position: absolute;
+            top: 8px;
+            right: 12px;
+            font-size: 13px;
+            color: #666;
+            background: #eef;
+            padding: 4px 8px;
+            border-radius: 12px;
+            box-shadow: 0 1px 2px rgba(0,0,0,0.08);
+        }
+
+        body.dark #onlineCount {
+            background: #444;
+            color: #ccc;
+        }
+
+        #toggleDark {
+            position: absolute;
+            top: 8px;
+            left: 12px;
+            font-size: 13px;
+            background: #eef;
+            padding: 4px 8px;
+            border-radius: 12px;
+            cursor: pointer;
+            box-shadow: 0 1px 2px rgba(0,0,0,0.08);
+        }
+
+        body.dark #toggleDark {
+            background: #444;
+            color: #ccc;
+        }
+
+        .copy-btn {
+            margin-left: 8px;
+            background: none;
+            border: none;
+            cursor: pointer;
+            font-size: 13px;
+            color: #999;
+        }
+
+        .copy-btn:hover {
+            color: #007aff;
+        }
+
+        @media screen and (max-width: 600px) {
+            #chat-container {
+                max-width: 100%;
+                border-radius: 0;
+            }
+        }
+
+        /* 新增状态提示样式 */
+        #status {
+            position: absolute;
+            top: 40px;
+            left: 12px;
+            font-size: 12px;
+            color: #999;
+        }
+        body.dark #status {
+            color: #ccc;
+        }
+    </style>
+</head>
+<body>
+<div id="chat-container">
+    <div id="toggleDark" onclick="toggleDarkMode()">🌙 夜间</div>
+    <div id="onlineCount">在线人数：0</div>
+    <div id="status">🟢 已连接</div>
+    <div id="chatLog"></div>
+    <div id="input-container">
+        <textarea id="messageInput" placeholder="来说点什么吧..." rows="1"></textarea>
+        <button id="sendButton" onclick="sendMessage()">发送</button>
+    </div>
+</div>
+
+<script>
+    let username = localStorage.getItem("chat_username");
+    if (!username) {
+        username = prompt("请输入你的昵称：");
+        if (!username) {
+            username = "匿名用户";
+        }
+        localStorage.setItem("chat_username", username);
+    }
+
+    let ws;
+    let reconnectInterval = 2000;
+    let reconnectAttempts = 0;
+
+    function connectWebSocket() {
+        let ws_scheme = window.location.protocol === "https:" ? "wss" : "ws";
+        ws = new WebSocket(ws_scheme + "://" + window.location.host + "/ws");
+
+        ws.onopen = function () {
+            ws.send(username);
+            updateStatus("🟢 已连接");
+            document.getElementById("sendButton").disabled = false;
+            reconnectAttempts = 0;
+        };
+
+        ws.onmessage = function (event) {
+            const chatLog = document.getElementById("chatLog");
+            const msg = event.data;
+
+            if (msg.startsWith("[人数]")) {
+                const count = msg.replace("[人数]", "");
+                document.getElementById("onlineCount").textContent = "在线人数：" + count;
+                return;
+            }
+
+            const messageDiv = document.createElement("div");
+            const contentSpan = document.createElement("span");
+            let contentText = "";
+
+            if (msg.startsWith("[系统]")) {
+                messageDiv.className = "message system";
+                contentText = msg;
+                contentSpan.textContent = contentText;
+            } else {
+                const splitIndex = msg.indexOf("：");
+                const sender = msg.substring(0, splitIndex);
+                const content = msg.substring(splitIndex + 1);
+
+                const nameSpan = document.createElement("span");
+                nameSpan.style.fontWeight = "bold";
+                nameSpan.style.marginRight = "6px";
+
+                if (sender === username) {
+                    messageDiv.className = "message self";
+                    nameSpan.textContent = "我：";
+                } else {
+                    messageDiv.className = "message other";
+                    nameSpan.textContent = sender + "：";
+                }
+
+                messageDiv.appendChild(nameSpan);
+                contentText = content;
+                contentSpan.textContent = contentText;
+
+                const copyBtn = document.createElement("button");
+                copyBtn.textContent = "📋";
+                copyBtn.className = "copy-btn";
+                copyBtn.onclick = () => {
+                    navigator.clipboard.writeText(contentText).then(() => {
+                        copyBtn.textContent = "✅";
+                        setTimeout(() => copyBtn.textContent = "📋", 1000);
+                    });
+                };
+
+                messageDiv.appendChild(contentSpan);
+                messageDiv.appendChild(copyBtn);
+            }
+
+            if (msg.startsWith("[系统]")) {
+                messageDiv.appendChild(contentSpan);
+            }
+
+            chatLog.appendChild(messageDiv);
+            chatLog.scrollTop = chatLog.scrollHeight;
+        };
+
+        ws.onclose = function () {
+            updateStatus(`🔴 断开，尝试重连(${++reconnectAttempts})...`);
+            document.getElementById("sendButton").disabled = true;
+            setTimeout(connectWebSocket, reconnectInterval);
+        };
+
+        ws.onerror = function () {
+            ws.close();
+        };
+    }
+
+    connectWebSocket();
+
+    function sendMessage() {
+        const input = document.getElementById("messageInput");
+        if (input.value.trim() !== "" && ws.readyState === WebSocket.OPEN) {
+            ws.send(input.value.trim());
+            input.value = "";
+            adjustInputHeight();
+        }
+    }
+
+    document.getElementById("messageInput").addEventListener("keydown", function (event) {
+        if (event.key === "Enter" && !event.shiftKey) {
+            event.preventDefault();
+            sendMessage();
+        }
+    });
+
+    document.getElementById("messageInput").addEventListener("input", adjustInputHeight);
+
+    function adjustInputHeight() {
+        const input = document.getElementById("messageInput");
+        input.style.height = "auto";
+        input.style.height = (input.scrollHeight) + "px";
+    }
+
+    function toggleDarkMode() {
+        document.body.classList.toggle("dark");
+        const btn = document.getElementById("toggleDark");
+        if (document.body.classList.contains("dark")) {
+            btn.textContent = "☀️ 日间";
+        } else {
+            btn.textContent = "🌙 夜间";
+        }
+    }
+
+    function updateStatus(text) {
+        document.getElementById("status").textContent = text;
+    }
+</script>
+</body>
+</html>
diff --git a/templates/chat.html_bak b/templates/chat.html_bak
new file mode 100644
index 0000000..1d8f588
--- /dev/null
+++ b/templates/chat.html_bak
@@ -0,0 +1,140 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>纵有千古、横有八荒</title>
+    <meta charset="utf-8">
+    <style>
+        html, body {
+            margin: 0;
+            padding: 0;
+            height: 100%;
+            font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+            background: linear-gradient(135deg, #eceff4, #f5f7fa);
+        }
+
+        #chat-container {
+            display: flex;
+            flex-direction: column;
+            height: 100vh;
+            max-width: 800px;
+            margin: 0 auto;
+            box-shadow: 0 0 10px rgba(0,0,0,0.05);
+            background: #ffffffcc;
+            backdrop-filter: blur(8px);
+            border-radius: 12px;
+            overflow: hidden;
+        }
+
+        #chatLog {
+            flex: 1;
+            padding: 16px;
+            border: none;
+            resize: none;
+            background: #f9f9fb;
+            overflow-y: auto;
+            font-size: 14px;
+            line-height: 1.6;
+            color: #333;
+            border-bottom: 1px solid #e0e0e0;
+        }
+
+        #chatLog:focus {
+            outline: none;
+        }
+
+        #input-container {
+            padding: 14px;
+            background-color: #f4f6f8;
+            display: flex;
+            gap: 10px;
+            border-top: 1px solid #e0e0e0;
+        }
+
+        #messageInput {
+            flex: 1;
+            padding: 10px 14px;
+            border: 1px solid #ccc;
+            border-radius: 10px;
+            font-size: 14px;
+            resize: none;
+            min-height: 42px;
+            background: #fff;
+            box-shadow: inset 0 1px 2px rgba(0,0,0,0.05);
+        }
+
+        #messageInput:focus {
+            border-color: #999;
+            outline: none;
+        }
+
+        #sendButton {
+            padding: 0 20px;
+            background: linear-gradient(135deg, #409eff, #66b1ff);
+            color: #fff;
+            border: none;
+            border-radius: 8px;
+            cursor: pointer;
+            font-size: 14px;
+            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+        }
+
+        #sendButton:hover {
+            background: linear-gradient(135deg, #66b1ff, #85c1ff);
+        }
+    </style>
+</head>
+<body>
+    <div id="chat-container">
+        <textarea id="chatLog" readonly></textarea>
+        <div id="input-container">
+            <textarea id="messageInput" placeholder="来说点什么吧..." rows="1"></textarea>
+            <button id="sendButton" onclick="sendMessage()">发送</button>
+        </div>
+    </div>
+
+    <script>
+        let username = localStorage.getItem("chat_username");
+        if (!username) {
+            username = prompt("请输入你的昵称：");
+            if (!username) {
+                username = "匿名用户";
+            }
+            localStorage.setItem("chat_username", username);
+        }
+
+        let ws_scheme = window.location.protocol === "https:" ? "wss" : "ws";
+        let ws = new WebSocket(ws_scheme + "://" + window.location.host + "/ws");
+
+        ws.onmessage = function(event) {
+            const chatLog = document.getElementById("chatLog");
+            chatLog.value += event.data + "\n";
+            chatLog.scrollTop = chatLog.scrollHeight;
+        };
+
+        function sendMessage() {
+            const input = document.getElementById("messageInput");
+            if (input.value.trim() !== "") {
+                const message = username + "：" + input.value.trim();
+                ws.send(message);
+                input.value = "";
+                adjustInputHeight();
+            }
+        }
+
+        document.getElementById("messageInput").addEventListener("keydown", function(event) {
+            if (event.key === "Enter" && !event.shiftKey) {
+                event.preventDefault();
+                sendMessage();
+            }
+        });
+
+        document.getElementById("messageInput").addEventListener("input", adjustInputHeight);
+
+        function adjustInputHeight() {
+            const input = document.getElementById("messageInput");
+            input.style.height = "auto";
+            input.style.height = (input.scrollHeight) + "px";
+        }
+    </script>
+</body>
+</html>
\ No newline at end of file
diff --git a/templates/chat.html_bak2 b/templates/chat.html_bak2
new file mode 100644
index 0000000..0651872
--- /dev/null
+++ b/templates/chat.html_bak2
@@ -0,0 +1,246 @@
+<!DOCTYPE html>
+<head>
+    <title>无痕聊天室</title>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+    <!-- ================= 原有样式，未做任何删改 ================= -->
+    <style>
+        html, body {
+            margin: 0;
+            padding: 0;
+            height: 100%;
+            font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+            background: linear-gradient(135deg, #eceff4, #f5f7fa);
+        }
+        body.dark { background: #1e1e1e; color: #ccc; }
+
+        #chat-container {
+            display: flex;
+            flex-direction: column;
+            height: 100vh;
+            max-width: 800px;
+            margin: 0 auto;
+            background: #ffffffcc;
+            backdrop-filter: blur(8px);
+            border-radius: 12px;
+            overflow: hidden;
+            position: relative;
+        }
+        body.dark #chat-container { background: #2c2c2ccc; }
+
+        #chatLog {
+            flex: 1;
+            padding: 16px;
+            overflow-y: auto;
+            background: #f9f9fb;
+            display: flex;
+            flex-direction: column;
+            gap: 8px;
+        }
+        body.dark #chatLog { background: #2a2a2a; }
+
+        .message {
+            max-width: 75%;
+            padding: 10px 14px;
+            border-radius: 16px;
+            font-size: 14px;
+            line-height: 1.5;
+            word-wrap: break-word;
+            white-space: pre-wrap;
+        }
+        .self {
+            align-self: flex-end;
+            background: linear-gradient(135deg, #409eff, #66b1ff);
+            color: #fff;
+            border-bottom-right-radius: 4px;
+        }
+        .other {
+            align-self: flex-start;
+            background: #e5e5ea;
+            color: #333;
+            border-bottom-left-radius: 4px;
+        }
+        .system {
+            align-self: center;
+            background: transparent;
+            color: #999;
+            font-size: 13px;
+        }
+
+        #input-container {
+            padding: 12px;
+            background-color: #f4f6f8;
+            display: flex;
+            gap: 8px;
+            border-top: 1px solid #e0e0e0;
+            align-items: flex-end;
+        }
+
+        #messageInput {
+            flex: 1;
+            padding: 10px 14px;
+            border: 1px solid #ccc;
+            border-radius: 10px;
+            resize: none;
+            min-height: 42px;
+        }
+
+        #sendButton, #uploadButton {
+            padding: 10px 14px;
+            border: none;
+            border-radius: 8px;
+            cursor: pointer;
+            background: #409eff;
+            color: #fff;
+        }
+
+        #onlineCount, #toggleDark, #status {
+            position: absolute;
+            font-size: 12px;
+            padding: 4px 8px;
+            background: #eef;
+            border-radius: 12px;
+        }
+        #onlineCount { top: 8px; right: 12px; }
+        #toggleDark { top: 8px; left: 12px; cursor: pointer; }
+        #status { top: 40px; left: 12px; }
+    </style>
+</head>
+
+<body>
+<div id="chat-container">
+    <div id="toggleDark" onclick="toggleDarkMode()">🌙 夜间</div>
+    <div id="onlineCount">在线人数：0</div>
+    <div id="status">🟢 已连接</div>
+
+    <div id="chatLog"></div>
+
+    <div id="input-container">
+        <textarea id="messageInput" placeholder="来说点什么吧..."></textarea>
+        <input type="file" id="fileInput" style="display:none">
+        <button id="uploadButton">📎</button>
+        <button id="sendButton">发送</button>
+    </div>
+</div>
+
+<script>
+/* ================= 用户名 ================= */
+let username = localStorage.getItem("chat_username");
+if (!username) {
+    username = prompt("请输入你的昵称：") || "匿名用户";
+    localStorage.setItem("chat_username", username);
+}
+
+/* ================= WebSocket ================= */
+let ws;
+function connectWS() {
+    const scheme = location.protocol === "https:" ? "wss" : "ws";
+    ws = new WebSocket(`${scheme}://${location.host}/ws`);
+
+    ws.onopen = () => {
+        ws.send(username);
+        setStatus("🟢 已连接");
+    };
+
+    ws.onmessage = e => renderMessage(e.data);
+
+    ws.onclose = () => {
+        setStatus("🔴 断开，重连中...");
+        setTimeout(connectWS, 2000);
+    };
+}
+connectWS();
+
+/* ================= 渲染消息 ================= */
+function renderMessage(msg) {
+    const log = document.getElementById("chatLog");
+    const div = document.createElement("div");
+
+    if (msg.startsWith("COUNT::")) {
+        document.getElementById("onlineCount").textContent =
+            "在线人数：" + msg.replace("COUNT::", "");
+        return;
+    }
+
+    if (msg.startsWith("SYSTEM::")) {
+        div.className = "message system";
+        div.textContent = msg.replace("SYSTEM::", "");
+    }
+    else if (msg.startsWith("IMG::")) {
+        div.className = "message other";
+        const img = document.createElement("img");
+        img.src = msg.replace("IMG::", "");
+        img.style.maxWidth = "240px";
+        img.style.borderRadius = "8px";
+        div.appendChild(img);
+    }
+    else if (msg.startsWith("VIDEO::")) {
+        div.className = "message other";
+        const v = document.createElement("video");
+        v.src = msg.replace("VIDEO::", "");
+        v.controls = true;
+        v.style.maxWidth = "260px";
+        div.appendChild(v);
+    }
+    else if (msg.startsWith("TEXT::")) {
+        const [, sender, text] = msg.split("::", 3);
+        div.className = "message " + (sender === username ? "self" : "other");
+        div.textContent = `${sender}：${text}`;
+    }
+
+    log.appendChild(div);
+    log.scrollTop = log.scrollHeight;
+}
+
+/* ================= 发送文本 ================= */
+document.getElementById("sendButton").onclick = () => {
+    const input = document.getElementById("messageInput");
+    if (input.value.trim()) {
+        ws.send(input.value.trim());
+        input.value = "";
+    }
+}
+
+document.getElementById("messageInput").addEventListener("keydown", (event) => {
+    if (event.key === "Enter" && !event.shiftKey) {
+        event.preventDefault(); // 防止换行
+        const input = event.target;
+
+        if (input.value.trim()) {
+            ws.send(input.value.trim());
+            input.value = "";
+        }
+    }
+});
+
+/* ================= 上传附件 ================= */
+document.getElementById("uploadButton").onclick = () =>
+    document.getElementById("fileInput").click();
+
+document.getElementById("fileInput").onchange = async () => {
+    const file = fileInput.files[0];
+    if (!file) return;
+
+    setStatus("📤 上传中...");
+    const form = new FormData();
+    form.append("file", file);
+
+    const res = await fetch("/upload", { method: "POST", body: form });
+    const data = await res.json();
+    if (data.error) alert(data.error);
+
+    setStatus("🟢 已连接");
+    fileInput.value = "";
+};
+
+/* ================= UI ================= */
+function toggleDarkMode() {
+    document.body.classList.toggle("dark");
+}
+function setStatus(t) {
+    document.getElementById("status").textContent = t;
+}
+</script>
+</body>
+</html>
\ No newline at end of file
diff --git a/templates/chat.html_bak3 b/templates/chat.html_bak3
new file mode 100644
index 0000000..0651872
--- /dev/null
+++ b/templates/chat.html_bak3
@@ -0,0 +1,246 @@
+<!DOCTYPE html>
+<head>
+    <title>无痕聊天室</title>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+    <!-- ================= 原有样式，未做任何删改 ================= -->
+    <style>
+        html, body {
+            margin: 0;
+            padding: 0;
+            height: 100%;
+            font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+            background: linear-gradient(135deg, #eceff4, #f5f7fa);
+        }
+        body.dark { background: #1e1e1e; color: #ccc; }
+
+        #chat-container {
+            display: flex;
+            flex-direction: column;
+            height: 100vh;
+            max-width: 800px;
+            margin: 0 auto;
+            background: #ffffffcc;
+            backdrop-filter: blur(8px);
+            border-radius: 12px;
+            overflow: hidden;
+            position: relative;
+        }
+        body.dark #chat-container { background: #2c2c2ccc; }
+
+        #chatLog {
+            flex: 1;
+            padding: 16px;
+            overflow-y: auto;
+            background: #f9f9fb;
+            display: flex;
+            flex-direction: column;
+            gap: 8px;
+        }
+        body.dark #chatLog { background: #2a2a2a; }
+
+        .message {
+            max-width: 75%;
+            padding: 10px 14px;
+            border-radius: 16px;
+            font-size: 14px;
+            line-height: 1.5;
+            word-wrap: break-word;
+            white-space: pre-wrap;
+        }
+        .self {
+            align-self: flex-end;
+            background: linear-gradient(135deg, #409eff, #66b1ff);
+            color: #fff;
+            border-bottom-right-radius: 4px;
+        }
+        .other {
+            align-self: flex-start;
+            background: #e5e5ea;
+            color: #333;
+            border-bottom-left-radius: 4px;
+        }
+        .system {
+            align-self: center;
+            background: transparent;
+            color: #999;
+            font-size: 13px;
+        }
+
+        #input-container {
+            padding: 12px;
+            background-color: #f4f6f8;
+            display: flex;
+            gap: 8px;
+            border-top: 1px solid #e0e0e0;
+            align-items: flex-end;
+        }
+
+        #messageInput {
+            flex: 1;
+            padding: 10px 14px;
+            border: 1px solid #ccc;
+            border-radius: 10px;
+            resize: none;
+            min-height: 42px;
+        }
+
+        #sendButton, #uploadButton {
+            padding: 10px 14px;
+            border: none;
+            border-radius: 8px;
+            cursor: pointer;
+            background: #409eff;
+            color: #fff;
+        }
+
+        #onlineCount, #toggleDark, #status {
+            position: absolute;
+            font-size: 12px;
+            padding: 4px 8px;
+            background: #eef;
+            border-radius: 12px;
+        }
+        #onlineCount { top: 8px; right: 12px; }
+        #toggleDark { top: 8px; left: 12px; cursor: pointer; }
+        #status { top: 40px; left: 12px; }
+    </style>
+</head>
+
+<body>
+<div id="chat-container">
+    <div id="toggleDark" onclick="toggleDarkMode()">🌙 夜间</div>
+    <div id="onlineCount">在线人数：0</div>
+    <div id="status">🟢 已连接</div>
+
+    <div id="chatLog"></div>
+
+    <div id="input-container">
+        <textarea id="messageInput" placeholder="来说点什么吧..."></textarea>
+        <input type="file" id="fileInput" style="display:none">
+        <button id="uploadButton">📎</button>
+        <button id="sendButton">发送</button>
+    </div>
+</div>
+
+<script>
+/* ================= 用户名 ================= */
+let username = localStorage.getItem("chat_username");
+if (!username) {
+    username = prompt("请输入你的昵称：") || "匿名用户";
+    localStorage.setItem("chat_username", username);
+}
+
+/* ================= WebSocket ================= */
+let ws;
+function connectWS() {
+    const scheme = location.protocol === "https:" ? "wss" : "ws";
+    ws = new WebSocket(`${scheme}://${location.host}/ws`);
+
+    ws.onopen = () => {
+        ws.send(username);
+        setStatus("🟢 已连接");
+    };
+
+    ws.onmessage = e => renderMessage(e.data);
+
+    ws.onclose = () => {
+        setStatus("🔴 断开，重连中...");
+        setTimeout(connectWS, 2000);
+    };
+}
+connectWS();
+
+/* ================= 渲染消息 ================= */
+function renderMessage(msg) {
+    const log = document.getElementById("chatLog");
+    const div = document.createElement("div");
+
+    if (msg.startsWith("COUNT::")) {
+        document.getElementById("onlineCount").textContent =
+            "在线人数：" + msg.replace("COUNT::", "");
+        return;
+    }
+
+    if (msg.startsWith("SYSTEM::")) {
+        div.className = "message system";
+        div.textContent = msg.replace("SYSTEM::", "");
+    }
+    else if (msg.startsWith("IMG::")) {
+        div.className = "message other";
+        const img = document.createElement("img");
+        img.src = msg.replace("IMG::", "");
+        img.style.maxWidth = "240px";
+        img.style.borderRadius = "8px";
+        div.appendChild(img);
+    }
+    else if (msg.startsWith("VIDEO::")) {
+        div.className = "message other";
+        const v = document.createElement("video");
+        v.src = msg.replace("VIDEO::", "");
+        v.controls = true;
+        v.style.maxWidth = "260px";
+        div.appendChild(v);
+    }
+    else if (msg.startsWith("TEXT::")) {
+        const [, sender, text] = msg.split("::", 3);
+        div.className = "message " + (sender === username ? "self" : "other");
+        div.textContent = `${sender}：${text}`;
+    }
+
+    log.appendChild(div);
+    log.scrollTop = log.scrollHeight;
+}
+
+/* ================= 发送文本 ================= */
+document.getElementById("sendButton").onclick = () => {
+    const input = document.getElementById("messageInput");
+    if (input.value.trim()) {
+        ws.send(input.value.trim());
+        input.value = "";
+    }
+}
+
+document.getElementById("messageInput").addEventListener("keydown", (event) => {
+    if (event.key === "Enter" && !event.shiftKey) {
+        event.preventDefault(); // 防止换行
+        const input = event.target;
+
+        if (input.value.trim()) {
+            ws.send(input.value.trim());
+            input.value = "";
+        }
+    }
+});
+
+/* ================= 上传附件 ================= */
+document.getElementById("uploadButton").onclick = () =>
+    document.getElementById("fileInput").click();
+
+document.getElementById("fileInput").onchange = async () => {
+    const file = fileInput.files[0];
+    if (!file) return;
+
+    setStatus("📤 上传中...");
+    const form = new FormData();
+    form.append("file", file);
+
+    const res = await fetch("/upload", { method: "POST", body: form });
+    const data = await res.json();
+    if (data.error) alert(data.error);
+
+    setStatus("🟢 已连接");
+    fileInput.value = "";
+};
+
+/* ================= UI ================= */
+function toggleDarkMode() {
+    document.body.classList.toggle("dark");
+}
+function setStatus(t) {
+    document.getElementById("status").textContent = t;
+}
+</script>
+</body>
+</html>
\ No newline at end of file
diff --git a/templates/chat.html_new b/templates/chat.html_new
new file mode 100644
index 0000000..e6ccd2f
--- /dev/null
+++ b/templates/chat.html_new
@@ -0,0 +1,234 @@
+<!DOCTYPE html>
+<head>
+    <title>无痕聊天室</title>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+    <!-- ================= 原有样式，未做任何删改 ================= -->
+    <style>
+        html, body {
+            margin: 0;
+            padding: 0;
+            height: 100%;
+            font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+            background: linear-gradient(135deg, #eceff4, #f5f7fa);
+        }
+        body.dark { background: #1e1e1e; color: #ccc; }
+
+        #chat-container {
+            display: flex;
+            flex-direction: column;
+            height: 100vh;
+            max-width: 800px;
+            margin: 0 auto;
+            background: #ffffffcc;
+            backdrop-filter: blur(8px);
+            border-radius: 12px;
+            overflow: hidden;
+            position: relative;
+        }
+        body.dark #chat-container { background: #2c2c2ccc; }
+
+        #chatLog {
+            flex: 1;
+            padding: 16px;
+            overflow-y: auto;
+            background: #f9f9fb;
+            display: flex;
+            flex-direction: column;
+            gap: 8px;
+        }
+        body.dark #chatLog { background: #2a2a2a; }
+
+        .message {
+            max-width: 75%;
+            padding: 10px 14px;
+            border-radius: 16px;
+            font-size: 14px;
+            line-height: 1.5;
+            word-wrap: break-word;
+            white-space: pre-wrap;
+        }
+        .self {
+            align-self: flex-end;
+            background: linear-gradient(135deg, #409eff, #66b1ff);
+            color: #fff;
+            border-bottom-right-radius: 4px;
+        }
+        .other {
+            align-self: flex-start;
+            background: #e5e5ea;
+            color: #333;
+            border-bottom-left-radius: 4px;
+        }
+        .system {
+            align-self: center;
+            background: transparent;
+            color: #999;
+            font-size: 13px;
+        }
+
+        #input-container {
+            padding: 12px;
+            background-color: #f4f6f8;
+            display: flex;
+            gap: 8px;
+            border-top: 1px solid #e0e0e0;
+            align-items: flex-end;
+        }
+
+        #messageInput {
+            flex: 1;
+            padding: 10px 14px;
+            border: 1px solid #ccc;
+            border-radius: 10px;
+            resize: none;
+            min-height: 42px;
+        }
+
+        #sendButton, #uploadButton {
+            padding: 10px 14px;
+            border: none;
+            border-radius: 8px;
+            cursor: pointer;
+            background: #409eff;
+            color: #fff;
+        }
+
+        #onlineCount, #toggleDark, #status {
+            position: absolute;
+            font-size: 12px;
+            padding: 4px 8px;
+            background: #eef;
+            border-radius: 12px;
+        }
+        #onlineCount { top: 8px; right: 12px; }
+        #toggleDark { top: 8px; left: 12px; cursor: pointer; }
+        #status { top: 40px; left: 12px; }
+    </style>
+</head>
+
+<body>
+<div id="chat-container">
+    <div id="toggleDark" onclick="toggleDarkMode()">🌙 夜间</div>
+    <div id="onlineCount">在线人数：0</div>
+    <div id="status">🟢 已连接</div>
+
+    <div id="chatLog"></div>
+
+    <div id="input-container">
+        <textarea id="messageInput" placeholder="来说点什么吧..."></textarea>
+        <input type="file" id="fileInput" style="display:none">
+        <button id="uploadButton">📎</button>
+        <button id="sendButton">发送</button>
+    </div>
+</div>
+
+<script>
+/* ================= 用户名 ================= */
+let username = localStorage.getItem("chat_username");
+if (!username) {
+    username = prompt("请输入你的昵称：") || "匿名用户";
+    localStorage.setItem("chat_username", username);
+}
+
+/* ================= WebSocket ================= */
+let ws;
+function connectWS() {
+    const scheme = location.protocol === "https:" ? "wss" : "ws";
+    ws = new WebSocket(`${scheme}://${location.host}/ws`);
+
+    ws.onopen = () => {
+        ws.send(username);
+        setStatus("🟢 已连接");
+    };
+
+    ws.onmessage = e => renderMessage(e.data);
+
+    ws.onclose = () => {
+        setStatus("🔴 断开，重连中...");
+        setTimeout(connectWS, 2000);
+    };
+}
+connectWS();
+
+/* ================= 渲染消息 ================= */
+function renderMessage(msg) {
+    const log = document.getElementById("chatLog");
+    const div = document.createElement("div");
+
+    if (msg.startsWith("COUNT::")) {
+        document.getElementById("onlineCount").textContent =
+            "在线人数：" + msg.replace("COUNT::", "");
+        return;
+    }
+
+    if (msg.startsWith("SYSTEM::")) {
+        div.className = "message system";
+        div.textContent = msg.replace("SYSTEM::", "");
+    }
+    else if (msg.startsWith("IMG::")) {
+        div.className = "message other";
+        const img = document.createElement("img");
+        img.src = msg.replace("IMG::", "");
+        img.style.maxWidth = "240px";
+        img.style.borderRadius = "8px";
+        div.appendChild(img);
+    }
+    else if (msg.startsWith("VIDEO::")) {
+        div.className = "message other";
+        const v = document.createElement("video");
+        v.src = msg.replace("VIDEO::", "");
+        v.controls = true;
+        v.style.maxWidth = "260px";
+        div.appendChild(v);
+    }
+    else if (msg.startsWith("TEXT::")) {
+        const [, sender, text] = msg.split("::", 3);
+        div.className = "message " + (sender === username ? "self" : "other");
+        div.textContent = `${sender}：${text}`;
+    }
+
+    log.appendChild(div);
+    log.scrollTop = log.scrollHeight;
+}
+
+/* ================= 发送文本 ================= */
+document.getElementById("sendButton").onclick = () => {
+    const input = document.getElementById("messageInput");
+    if (input.value.trim()) {
+        ws.send(input.value.trim());
+        input.value = "";
+    }
+};
+
+/* ================= 上传附件 ================= */
+document.getElementById("uploadButton").onclick = () =>
+    document.getElementById("fileInput").click();
+
+document.getElementById("fileInput").onchange = async () => {
+    const file = fileInput.files[0];
+    if (!file) return;
+
+    setStatus("📤 上传中...");
+    const form = new FormData();
+    form.append("file", file);
+
+    const res = await fetch("/upload", { method: "POST", body: form });
+    const data = await res.json();
+    if (data.error) alert(data.error);
+
+    setStatus("🟢 已连接");
+    fileInput.value = "";
+};
+
+/* ================= UI ================= */
+function toggleDarkMode() {
+    document.body.classList.toggle("dark");
+}
+function setStatus(t) {
+    document.getElementById("status").textContent = t;
+}
+</script>
+</body>
+</html>
\ No newline at end of file
diff --git a/uwsgi.ini b/uwsgi.ini
new file mode 100644
index 0000000..b80aed2
--- /dev/null
+++ b/uwsgi.ini
@@ -0,0 +1,30 @@
+[uwsgi]
+uid = uwsgi
+gid = uwsgi
+
+# 启动服务监听的地址和端口
+http-socket = 0.0.0.0:8202
+
+# 指定虚拟环境路径
+virtualenv = /opt/service/python_prj/pictoHub.env
+
+# 指定 Flask 应用文件的路径
+wsgi-file = /opt/service/python_prj/chatHub/chat.py
+
+# 设置 Flask 的应用实例
+callable = app
+
+# 设置静态文件目录映射
+static-map = /static=/opt/service/python_prj/chatHub/static/
+
+# 日志文件
+logto = /var/log/uwsgi/chat-project.log
+
+# 设置进程数
+processes = 4
+
+# 启动时的 Python 环境路径
+home = /opt/service/python_prj/pictoHub.env
+
+# 确保应用正常启动
+touch-reload = /opt/service/python_prj/chatHub/chat.py