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/mbedtls/programs/fuzz/fuzz_x509crt.c

@@ -0,0 +1,40 @@
+#include <stdint.h>
+#include "mbedtls/x509_crt.h"
+#include "common.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
+{
+#ifdef MBEDTLS_X509_CRT_PARSE_C
+    int ret;
+    mbedtls_x509_crt crt;
+    unsigned char buf[4096];
+
+    mbedtls_x509_crt_init(&crt);
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status = psa_crypto_init();
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+    ret = mbedtls_x509_crt_parse(&crt, Data, Size);
+#if !defined(MBEDTLS_X509_REMOVE_INFO)
+    if (ret == 0) {
+        ret = mbedtls_x509_crt_info((char *) buf, sizeof(buf) - 1, " ", &crt);
+    }
+#else
+    ((void) ret);
+    ((void) buf);
+#endif /* !MBEDTLS_X509_REMOVE_INFO */
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+exit:
+    mbedtls_psa_crypto_free();
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+    mbedtls_x509_crt_free(&crt);
+#else
+    (void) Data;
+    (void) Size;
+#endif
+
+    return 0;
+}