test(compat): add v1 compatibility suite; docs: add V1_COMPATIBILITY.md

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/test_usage.py

@@ -0,0 +1,33 @@
+# -*- coding: utf-8 -*-
+"""Smoke test: built-in CLI usage lists routed account subcommands."""
+from __future__ import annotations
+
+import os
+import subprocess
+import sys
+
+import pytest
+
+_scripts = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), "scripts")
+
+
+def test_usage_includes_all_account_subcommands():
+    env = {**os.environ, "PYTHONPATH": _scripts}
+    r = subprocess.run(
+        [sys.executable, "-m", "cli.app"],
+        capture_output=True,
+        text=True,
+        env=env,
+        cwd=_scripts,
+    )
+    assert r.returncode == 1
+    usage = r.stdout
+    for cmd in (
+        "init-master-key",
+        "export-credentials",
+        "import-credentials",
+        "add-web",
+        "get-credential",
+        "pick-web",
+    ):
+        assert cmd in usage, f"USAGE 缺少 {cmd}"