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/polcutil.h

@@ -0,0 +1,39 @@
+#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
+
+const LPCWSTR POLICY_BURN_REGISTRY_PATH = L"WiX\\Burn";
+
+/********************************************************************
+PolcReadNumber - reads a number from policy.
+
+NOTE: S_FALSE returned if policy not set.
+NOTE: out is set to default on S_FALSE or any error.
+********************************************************************/
+HRESULT DAPI PolcReadNumber(
+    __in_z LPCWSTR wzPolicyPath,
+    __in_z LPCWSTR wzPolicyName,
+    __in DWORD dwDefault,
+    __out DWORD* pdw
+    );
+
+/********************************************************************
+PolcReadString - reads a string from policy.
+
+NOTE: S_FALSE returned if policy not set.
+NOTE: out is set to default on S_FALSE or any error.
+********************************************************************/
+HRESULT DAPI PolcReadString(
+    __in_z LPCWSTR wzPolicyPath,
+    __in_z LPCWSTR wzPolicyName,
+    __in_z_opt LPCWSTR wzDefault,
+    __deref_out_z LPWSTR* pscz
+    );
+
+#ifdef __cplusplus
+}
+#endif