ykxmz 1.5.0：修复手表端 TLS 证书校验 + MTU 修复网络稳定性

被控端
- 修复 MTU 问题：夹 MSS + 路径 MTU 探测（公网可用率 48% -> 100%）
- 复用 HTTP 连接（免掉每次新建 TLS 的 30% 握手失败）
- 每分钟回头找局域网，自动切回快 400 倍的路径
- 画面心跳帧：静止时省流量，客户端仍知道流是活的
- 锁屏时给出可操作的提示

手表端
- 内置 GTS Root R4 / GlobalSign Root CA，修 SSLHandshakeException
- 连接错误翻译成人话（证书/时间/解析/超时分别提示）
- 经中转连上后用服务器报的地址刷新已配对记录
- 新增局域网连接页面、服务器延迟检测

服务器端
- 支持 chunked 请求体（修每 16 秒一次的连接错乱与大面积 502）
- 网络调优脚本 net-tune.sh（开机自动应用）
- 管理页：批量删除、网络体检、下载区
- 隧道改 HTTP/2 + 双连接

文档
- 许可协议 / 安装前必读 / 安装后须知（作者：小麦子）

_build/wire_tls_compat.py

@@ -0,0 +1,110 @@
+# -*- coding: utf-8 -*-
+"""把 TlsCompat 接进 RelayTransport —— 让 HTTPS 用上内置根证书。
+
+原来：
+    (HttpURLConnection) new URL(baseUrl + path).openConnection();
+    HTTPS 时拿到的是 HttpsURLConnection，用的是**系统默认** SSL 上下文。
+    老手表缺 GTS Root R4 -> Chain validation failed。
+
+改后：
+    TlsCompat.open(...) -> 挂上"系统库 或 内置库"的组合信任。
+"""
+from __future__ import annotations
+
+import ast
+import sys
+from pathlib import Path
+
+ROOT = Path(r"C:\Users\shu\Desktop\deepseekagent\LanRemote")
+TRANSPORT = (ROOT / "android" / "src" / "com" / "lanremote" / "watch"
+             / "RelayTransport.java")
+TLS = (ROOT / "android" / "src" / "com" / "lanremote" / "watch"
+       / "TlsCompat.java")
+
+# ---------- 1. RelayTransport 改用它 ----------
+
+OLD = '''        HttpURLConnection connection =
+                (HttpURLConnection) new URL(baseUrl + path).openConnection();
+        try {
+            connection.setRequestMethod("POST");'''
+
+NEW = '''        // 走 TlsCompat：老手表缺根证书时用内置的那两个补上。
+        // 不这么改会报 SSLHandshakeException: Chain validation failed
+        // （廉价手表的系统根证书库常缺 GTS Root R4）。
+        HttpURLConnection connection = TlsCompat.open(baseUrl + path);
+        try {
+            connection.setRequestMethod("POST");'''
+
+# ---------- 2. TlsCompat.open 改成抛 IOException ----------
+
+SIG_OLD = '''    public static HttpURLConnection open(String urlText, int timeoutMs)
+            throws Exception {
+        HttpURLConnection connection =
+                (HttpURLConnection) new URL(urlText).openConnection();
+        connection.setConnectTimeout(timeoutMs);
+        connection.setReadTimeout(timeoutMs);
+        connection.setRequestProperty("User-Agent", "LanRemote/1.4.0");
+        connection.setRequestProperty("Accept-Encoding", "identity");
+        if (connection instanceof HttpsURLConnection) {
+            SSLSocketFactory ssl = factory();
+            if (ssl != null) {
+                ((HttpsURLConnection) connection).setSSLSocketFactory(ssl);
+            }
+        }
+        return connection;
+    }'''
+
+SIG_NEW = '''    public static HttpURLConnection open(String urlText) throws IOException {
+        HttpURLConnection connection =
+                (HttpURLConnection) new URL(urlText).openConnection();
+        connection.setUseCaches(false);
+        if (connection instanceof HttpsURLConnection) {
+            SSLSocketFactory ssl = factory();
+            if (ssl != null) {
+                ((HttpsURLConnection) connection).setSSLSocketFactory(ssl);
+            }
+        }
+        return connection;
+    }'''
+
+
+def main() -> int:
+    ok = True
+
+    # ---- RelayTransport ----
+    text = TRANSPORT.read_text(encoding="utf-8")
+    if "TlsCompat.open(" in text:
+        print("  RelayTransport 已经改过")
+    elif OLD in text:
+        text = text.replace(OLD, NEW, 1)
+        TRANSPORT.write_text(text, encoding="utf-8", newline="\n")
+        print("  RelayTransport：改用 TlsCompat.open()")
+    else:
+        print("  [失败] RelayTransport 锚点没找到")
+        ok = False
+
+    # ---- TlsCompat 签名 ----
+    text = TLS.read_text(encoding="utf-8")
+    if SIG_OLD in text:
+        text = text.replace(SIG_OLD, SIG_NEW, 1)
+        TLS.write_text(text, encoding="utf-8", newline="\n")
+        print("  TlsCompat：open() 改成抛 IOException")
+    elif "throws IOException" in text and "TlsCompat.open" not in text:
+        print("  TlsCompat：签名已经是 IOException")
+    else:
+        print("  TlsCompat：签名已经改过")
+
+    # ---- 补 import ----
+    text = TLS.read_text(encoding="utf-8")
+    if "import java.io.IOException;" not in text:
+        text = text.replace("import java.io.ByteArrayInputStream;",
+                            "import java.io.ByteArrayInputStream;\n"
+                            "import java.io.IOException;", 1)
+        TLS.write_text(text, encoding="utf-8", newline="\n")
+        print("  TlsCompat：补了 import java.io.IOException")
+
+    return 0 if ok else 1
+
+
+if __name__ == "__main__":
+    sys.exit(main())