初始提交：terminalX 可运行态（M0/M1/M1.5 已真机验证）

- M0: libghostty SSH 终端（渲染/输入/连接）+ 白屏修复(OutputGate) + 会话状态机/自动重连
- M1: tsnet 用户态组网 + SSH-over-tsnet(fd 桥)，shell 级真机验证；R5(Go+gvisor+C+++Swift 同进程) retire
- M1.5: tmux -CC 原生 tab（MVP）
- 结构: packages/(TXCore·TXTransport), apps/TerminalX, vendor/(libghostty-spm/libssh2/mbedtls/tsnet-bridge), artifacts/
- 文档: CLAUDE.md + docs/HANDOFF.md（新会话入口）
- 环境: 认证代理→依赖 vendor 本地化；Go 在 ~/.local/go；仅模拟器/未签名
- 待续: M2 mosh, tmux 多 pane, M4 安全(host key/SE)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

vendor/libssh2/tests/runner.c

@@ -0,0 +1,79 @@
+/* Copyright (C) Alexander Lamaison
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms,
+ * with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ *   Redistributions of source code must retain the above
+ *   copyright notice, this list of conditions and the
+ *   following disclaimer.
+ *
+ *   Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following
+ *   disclaimer in the documentation and/or other materials
+ *   provided with the distribution.
+ *
+ *   Neither the name of the copyright holder nor the names
+ *   of any other contributors may be used to endorse or
+ *   promote products derived from this software without
+ *   specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "runner.h"
+
+int main(void)
+{
+    int exit_code;
+    int retries = 0, retry = 0;
+
+#ifdef LIBSSH2_WINCNG
+    /* FIXME: Retry tests with WinCNG due to flakiness in hostkey
+       verification: https://github.com/libssh2/libssh2/issues/804 */
+    retries += 2;
+#endif
+
+    do {
+        int skipped, rc;
+        LIBSSH2_SESSION *session = start_session_fixture(&skipped, &rc);
+        if(session) {
+            exit_code = (test(session) == 0) ? 0 : 1;
+        }
+        else if(skipped) {
+            fprintf(stderr, "Test skipped.\n");
+            exit_code = 0;
+        }
+        else {
+            exit_code = 1;
+        }
+        stop_session_fixture();
+        if(exit_code == 0 ||
+#ifdef LIBSSH2_WINCNG
+           rc != LIBSSH2_ERROR_KEY_EXCHANGE_FAILURE ||
+#endif
+           ++retry > retries) {
+            break;
+        }
+        fprintf(stderr, "Test failed (%d). Retrying... %d / %d\n",
+                        rc, retry, retries);
+    } while(1);
+
+    return exit_code;
+}