test: 全模式功能测试覆盖 (12模式 33项测试)

新增 arc/eng/do/dbg/ctx/xdb/sdb/ndb/dep/tst/sec/rvr 全模式功能测试；
fix do_mode UI 检测中文关键词补全；scripts/install.sh 同步更新。

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

test_xdb_sdb_ndb.py

@@ -0,0 +1,90 @@
+#!/usr/bin/env python3
+"""Xdb/Sdb/Ndb Mode 功能测试"""
+
+import sys
+import os
+import tempfile
+import json
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).parent / "lib"))
+
+def test_xdb_enter():
+    """测试 GUI 验证器初始化"""
+    from air_runtime.modes.xdb_sdb_ndb_modes import xdb_enter
+
+    with tempfile.TemporaryDirectory() as tmpdir:
+        project_root = Path(tmpdir)
+
+        result = xdb_enter(project_root)
+        assert "state_path" in result
+        assert Path(result["state_path"]).exists()
+
+        print("✓ Xdb 初始化测试通过")
+    return True
+
+
+def test_sdb_enter():
+    """测试静态分析器初始化"""
+    from air_runtime.modes.xdb_sdb_ndb_modes import sdb_enter
+
+    with tempfile.TemporaryDirectory() as tmpdir:
+        project_root = Path(tmpdir)
+
+        result = sdb_enter(project_root)
+        assert "state_path" in result
+        assert Path(result["state_path"]).exists()
+
+        print("✓ Sdb 初始化测试通过")
+    return True
+
+
+def test_ndb_enter():
+    """测试网络调试器初始化"""
+    from air_runtime.modes.xdb_sdb_ndb_modes import ndb_enter
+
+    with tempfile.TemporaryDirectory() as tmpdir:
+        project_root = Path(tmpdir)
+
+        result = ndb_enter(project_root)
+        assert "state_path" in result
+        assert Path(result["state_path"]).exists()
+
+        print("✓ Ndb 初始化测试通过")
+    return True
+
+
+def main():
+    print("=" * 50)
+    print("Xdb/Sdb/Ndb Mode 功能测试")
+    print("=" * 50)
+
+    tests = [
+        ("Xdb 初始化", test_xdb_enter),
+        ("Sdb 初始化", test_sdb_enter),
+        ("Ndb 初始化", test_ndb_enter),
+    ]
+
+    passed = 0
+    failed = 0
+
+    for name, test_fn in tests:
+        try:
+            test_fn()
+            passed += 1
+        except Exception as e:
+            print(f"✗ {name} 失败: {e}")
+            import traceback
+            traceback.print_exc()
+            failed += 1
+
+    print("=" * 50)
+    print(f"测试结果: {passed} 通过, {failed} 失败")
+    print("=" * 50)
+
+    return failed == 0
+
+
+if __name__ == "__main__":
+    success = main()
+    sys.exit(0 if success else 1)