新增: AI工具授权目录总开关(信任所有目录)

- path_auth判定加bypass旁路:开启时白名单外目录免逐次询问直接放行
- 黑名单凭据目录保护不随开关放行(安全硬边界保留)
- 设置页授权目录面板加开关(默认关,读取失败按关处理)
- 对话区开启时常驻放行提示横幅防静默裸奔,中英i18n齐

src/i18n/en/settings.ts

@@ -192,6 +192,9 @@ export default {
     allowedDirsDup: 'This directory is already in the authorized list',
     allowedDirsAddFail: 'Failed to add authorized directory',
     allowedDirsRemoveFail: 'Failed to remove authorized directory',
+    // "Trust all directories" master switch (Settings - Security - AI Tool Allowed Dirs panel)
+    labelPathAuthBypass: 'Trust all directories',
+    descPathAuthBypass: 'When enabled, AI can directly access any unprotected directory without per-access prompts; protected (blacklisted) directories such as credential folders are still denied.',
 
     // ===== ScriptNode command execution safety =====
     panelScriptSafety: '🛡️ Command Execution Safety',