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/dlutil.h

@@ -0,0 +1,59 @@
+#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
+
+typedef	HRESULT (WINAPI *LPAUTHENTICATION_ROUTINE)(
+    __in LPVOID pVoid,
+    __in HINTERNET hUrl,
+    __in long lHttpCode,
+    __out BOOL* pfRetrySend,
+    __out BOOL* pfRetry
+    );
+
+typedef int (WINAPI *LPCANCEL_ROUTINE)(
+    __in HRESULT hrError,
+    __in_z_opt LPCWSTR wzError,
+    __in BOOL fAllowRetry,
+    __in_opt LPVOID pvContext
+    );
+
+// structs
+typedef struct _DOWNLOAD_SOURCE
+{
+    LPWSTR sczUrl;
+    LPWSTR sczUser;
+    LPWSTR sczPassword;
+} DOWNLOAD_SOURCE;
+
+typedef struct _DOWNLOAD_CACHE_CALLBACK
+{
+    LPPROGRESS_ROUTINE pfnProgress;
+    LPCANCEL_ROUTINE pfnCancel;
+    LPVOID pv;
+} DOWNLOAD_CACHE_CALLBACK;
+
+typedef struct _DOWNLOAD_AUTHENTICATION_CALLBACK
+{
+    LPAUTHENTICATION_ROUTINE pfnAuthenticate;
+    LPVOID pv;
+} DOWNLOAD_AUTHENTICATION_CALLBACK;
+
+
+// functions
+
+HRESULT DAPI DownloadUrl(
+    __in DOWNLOAD_SOURCE* pDownloadSource,
+    __in DWORD64 dw64AuthoredDownloadSize,
+    __in LPCWSTR wzDestinationPath,
+    __in_opt DOWNLOAD_CACHE_CALLBACK* pCache,
+    __in_opt DOWNLOAD_AUTHENTICATION_CALLBACK* pAuthenticate
+    );
+
+
+#ifdef __cplusplus
+}
+#endif