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/docs/libssh2_knownhost_del.3

@@ -0,0 +1,28 @@
+.\" Copyright (C) Daniel Stenberg
+.\" SPDX-License-Identifier: BSD-3-Clause
+.TH libssh2_knownhost_del 3 "28 May 2009" "libssh2" "libssh2"
+.SH NAME
+libssh2_knownhost_del - delete a known host entry
+.SH SYNOPSIS
+.nf
+#include <libssh2.h>
+
+int
+libssh2_knownhost_del(LIBSSH2_KNOWNHOSTS *hosts,
+                      struct libssh2_knownhost *entry);
+.fi
+.SH DESCRIPTION
+Delete a known host entry from the collection of known hosts.
+
+\fIentry\fP is a pointer to a struct that you can extract with
+\fIlibssh2_knownhost_check(3)\fP or \fIlibssh2_knownhost_get(3)\fP.
+.SH RETURN VALUE
+Returns a regular libssh2 error code, where negative values are error codes
+and 0 indicates success.
+.SH AVAILABILITY
+Added in libssh2 1.2
+.SH SEE ALSO
+.BR libssh2_knownhost_init(3)
+.BR libssh2_knownhost_free(3)
+.BR libssh2_knownhost_add(3)
+.BR libssh2_knownhost_check(3)