fix: resolve TypeScript type-check errors

- Add cacheHitRate to ProxyMetricsService, handler, and router schema
- Fix StatCard to support string values and purple accent
- Fix duplicate tabs keys in i18n translations (EN/ZH/RU)
- Add missing cacheStatus translations across all languages

tools/wix314/sdk/inc/apputil.h

@@ -0,0 +1,45 @@
+#pragma once
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// functions
+
+/********************************************************************
+AppFreeCommandLineArgs - frees argv from AppParseCommandLine.
+
+********************************************************************/
+void DAPI AppFreeCommandLineArgs(
+    __in LPWSTR* argv
+    );
+
+void DAPI AppInitialize(
+    __in_ecount(cSafelyLoadSystemDlls) LPCWSTR rgsczSafelyLoadSystemDlls[],
+    __in DWORD cSafelyLoadSystemDlls
+    );
+
+/********************************************************************
+AppInitializeUnsafe - initializes without the full standard safety
+                      precautions for an application.
+
+********************************************************************/
+void DAPI AppInitializeUnsafe();
+
+/********************************************************************
+AppParseCommandLine - parses the command line using CommandLineToArgvW.
+                      The caller must free the value of pArgv on success
+                      by calling AppFreeCommandLineArgs.
+
+********************************************************************/
+DAPI_(HRESULT) AppParseCommandLine(
+    __in LPCWSTR wzCommandLine,
+    __in int* argc,
+    __in LPWSTR** pArgv
+    );
+
+#ifdef __cplusplus
+}
+#endif