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/framework/data_files/dir-maxpath/long.sh

@@ -0,0 +1,38 @@
+#!/bin/sh
+#
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+
+set -eu
+
+: ${OPENSSL:=openssl}
+NB=20
+
+OPT="-days 3653 -sha256"
+
+# generate self-signed root
+$OPENSSL ecparam -name prime256v1 -genkey -out 00.key
+$OPENSSL req -new -x509 -subj "/C=UK/O=mbed TLS/CN=CA00" $OPT \
+             -key 00.key -out 00.crt
+
+# cXX.pem is the chain starting at XX
+cp 00.crt c00.pem
+
+# generate long chain
+i=1
+while [ $i -le $NB ]; do
+    UP=$( printf "%02d" $((i-1)) )
+    ME=$( printf "%02d" $i )
+
+    $OPENSSL ecparam -name prime256v1 -genkey -out ${ME}.key
+    $OPENSSL req -new -subj "/C=UK/O=mbed TLS/CN=CA${ME}" \
+                 -key ${ME}.key -out ${ME}.csr
+    $OPENSSL x509 -req -CA ${UP}.crt -CAkey ${UP}.key -set_serial 1 $OPT \
+                  -extfile int.opensslconf -extensions int \
+                  -in ${ME}.csr -out ${ME}.crt
+
+    cat ${ME}.crt c${UP}.pem > c${ME}.pem
+
+    rm ${ME}.csr
+    i=$((i+1))
+done