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/tests/suites/test_suite_common.function

@@ -0,0 +1,86 @@
+/* BEGIN_HEADER */
+#include "common.h"
+
+static void fill_arrays(unsigned char *a,
+                        unsigned char *b,
+                        unsigned char *r1,
+                        unsigned char *r2,
+                        size_t n)
+{
+    for (size_t i = 0; i < n; i++) {
+        a[i]  = (unsigned char) i * 3;
+        b[i]  = (unsigned char) i * 3 + 1;
+        r1[i] = (unsigned char) i * 3 + 2;
+        r2[i] = r1[i];
+    }
+}
+/* END_HEADER */
+
+/* BEGIN_CASE */
+void mbedtls_xor(int len)
+{
+    size_t n = (size_t) len;
+    unsigned char *a = NULL, *b = NULL, *r1 = NULL, *r2 = NULL;
+    TEST_CALLOC(a, n + 1);
+    TEST_CALLOC(b, n + 1);
+    TEST_CALLOC(r1, n + 1);
+    TEST_CALLOC(r2, n + 1);
+
+    /* Test non-overlapping */
+    fill_arrays(a, b, r1, r2, n);
+    for (size_t i = 0; i < n; i++) {
+        r1[i] = a[i] ^ b[i];
+    }
+    mbedtls_xor(r2, a, b, n);
+    TEST_MEMORY_COMPARE(r1, n, r2, n);
+
+    /* Test r == a */
+    fill_arrays(a, b, r1, r2, n);
+    for (size_t i = 0; i < n; i++) {
+        r1[i] = r1[i] ^ b[i];
+    }
+    mbedtls_xor(r2, r2, b, n);
+    TEST_MEMORY_COMPARE(r1, n, r2, n);
+
+    /* Test r == b */
+    fill_arrays(a, b, r1, r2, n);
+    for (size_t i = 0; i < n; i++) {
+        r1[i] = a[i] ^ r1[i];
+    }
+    mbedtls_xor(r2, a, r2, n);
+    TEST_MEMORY_COMPARE(r1, n, r2, n);
+
+    /* Test a == b */
+    fill_arrays(a, b, r1, r2, n);
+    for (size_t i = 0; i < n; i++) {
+        r1[i] = a[i] ^ a[i];
+    }
+    mbedtls_xor(r2, a, a, n);
+    TEST_MEMORY_COMPARE(r1, n, r2, n);
+
+    /* Test a == b == r */
+    fill_arrays(a, b, r1, r2, n);
+    for (size_t i = 0; i < n; i++) {
+        r1[i] = r1[i] ^ r1[i];
+    }
+    mbedtls_xor(r2, r2, r2, n);
+    TEST_MEMORY_COMPARE(r1, n, r2, n);
+
+    /* Test non-word-aligned buffers, for all combinations of alignedness */
+    for (int i = 0; i < 7; i++) {
+        int r_off = i & 1, a_off = (i & 2) >> 1, b_off = (i & 4) >> 2;
+        fill_arrays(a, b, r1, r2, n + 1);
+
+        for (size_t j = 0; j < n; j++) {
+            r1[j + r_off] = a[j + a_off] ^ b[j + b_off];
+        }
+        mbedtls_xor(r2 + r_off, a + a_off, b + b_off, n);
+        TEST_MEMORY_COMPARE(r1 + r_off, n, r2 + r_off, n);
+    }
+exit:
+    mbedtls_free(a);
+    mbedtls_free(b);
+    mbedtls_free(r1);
+    mbedtls_free(r2);
+}
+/* END_CASE */