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/libghostty-spm/.github/workflows/pr.yml

@@ -0,0 +1,38 @@
+name: PR Build & Test
+
+on:
+  pull_request:
+    branches: [main]
+    types: [opened, synchronize, reopened]
+
+# Zero-scope GITHUB_TOKEN: PR runs untrusted contributor code, so the
+# token gets no permissions at all. Public repo, so checkout works
+# without auth. No secrets referenced anywhere in this workflow.
+permissions: {}
+
+concurrency:
+  group: pr-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  build-test:
+    name: Build & Test
+    runs-on: macos-26
+    timeout-minutes: 30
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+        with:
+          persist-credentials: false
+
+      - name: Set up Xcode
+        run: sudo xcode-select -s /Applications/Xcode.app
+
+      - name: Swift Version
+        run: swift --version
+
+      - name: Build Package Matrix
+        run: ./Script/test.sh
+
+      - name: Swift Test
+        run: swift test