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/Script/prepare-arm64e-source.sh

@@ -0,0 +1,53 @@
+#!/bin/zsh
+
+set -euo pipefail
+
+cd "$(dirname "$0")/.."
+
+if [ ! -f .root ]; then
+    echo "[-] malformed project structure"
+    exit 1
+fi
+
+SOURCE_DIR=${1:-}
+GLOBAL_CACHE_DIR=${2:-}
+
+if [ -z "$SOURCE_DIR" ] || [ -z "$GLOBAL_CACHE_DIR" ]; then
+    echo "Usage: $0 <source_dir> <zig_global_cache_dir>"
+    exit 1
+fi
+
+if [ ! -d "$SOURCE_DIR" ]; then
+    echo "[-] ghostty source directory not found: $SOURCE_DIR"
+    exit 1
+fi
+
+ZIG_OBJC_URL="https://deps.files.ghostty.org/zig_objc-f356ed02833f0f1b8e84d50bed9e807bf7cdc0ae.tar.gz"
+ZIG_OBJC_HASH="zig_objc-0.0.0-Ir_Sp5gTAQCvxxR7oVIrPXxXwsfKgVP7_wqoOQrZjFeK"
+VENDOR_DIR="$SOURCE_DIR/.libghostty-spm/zig_objc"
+VENDOR_PATCH="$(pwd)/Patches/arm64e/zig-objc/0001-arm64e-boundaries.patch"
+VENDOR_PATCH_MARKER="$VENDOR_DIR/.libghostty-spm-arm64e-patched"
+
+./Script/apply-patches.sh "$SOURCE_DIR" "$(pwd)/Patches/arm64e/ghostty"
+
+if [ ! -f "$VENDOR_DIR/src/block.zig" ]; then
+    fetched_hash=$(zig fetch --global-cache-dir "$GLOBAL_CACHE_DIR" "$ZIG_OBJC_URL")
+    if [ "$fetched_hash" != "$ZIG_OBJC_HASH" ]; then
+        echo "[-] zig-objc hash mismatch: expected $ZIG_OBJC_HASH, got $fetched_hash"
+        exit 1
+    fi
+
+    mkdir -p "$(dirname "$VENDOR_DIR")"
+    cp -R "$GLOBAL_CACHE_DIR/p/$ZIG_OBJC_HASH" "$VENDOR_DIR"
+    echo "[+] vendored pinned zig-objc for arm64e"
+fi
+
+if [ ! -f "$VENDOR_PATCH_MARKER" ]; then
+    patch -p1 -f -d "$VENDOR_DIR" < "$VENDOR_PATCH" >/dev/null
+    touch "$VENDOR_PATCH_MARKER"
+    echo "[+] applied zig-objc arm64e patch"
+else
+    echo "[+] zig-objc arm64e patch already applied"
+fi
+
+echo "[+] prepared arm64e pointer-authentication boundaries"