tools/generateLocalizationHeader.ps1:53

• FormatArgument(const std::basic_string<...>&) currently constructs a temporary std::string and then calls MultiByteToWide(const std::string&), which immediately calls c_str() and ignores the explicit size. This adds an unnecessary allocation/copy for non-std::string basic_string types without improving correctness.
  src/windows/wslc/services/ContainerModel.cpp:29
• std::all_of(..., ::isdigit) is undefined behavior for chars with the high bit set because ::isdigit expects an unsigned char value (or EOF). This can mis-validate non-ASCII input depending on signedness/locale.

    static auto parsePort = [](const std::string& value, const std::wstring& errorMessage) -> uint16_t {
        try
        {
            // Ensure the value is not empty and contains only digits before parsing
            if (value.empty() || !std::all_of(value.begin(), value.end(), ::isdigit))
            {

tools/generateLocalizationHeader.ps1:31

• The localization FormatArgument() overload set doesn’t handle const char[N] arguments. Because generated helpers take const T& parameters, passing a narrow string literal (or other char array) will deduce T = const char[N] and fall back to the generic FormatArgument(const T&), which then forwards the array into std::make_wformat_args and fails to compile (no char[] -> wchar_t formatter). The PR description mentions supporting character arrays, so this appears to be an omission.

tools/generateLocalizationHeader.ps1:36

• On WIN32, FormatArgument currently handles char pointers and std::string, but not character arrays (e.g. string literals or const char[N]). Because the generated message helpers take arguments as const T&, string literals bind as const char(&)[N] and will fall through to the generic FormatArgument(const T&), reintroducing the deleted/removed cross-encoding formatting problem when building wide messages. This shows up in existing call sites like Localization::MessageConfigExpected("']'", ...) in src/shared/configfile/configfile.cpp.

Add an overload for const char (&)[N] (and optionally char (&)[N]) so arrays are converted via MultiByteToWide before make_wformat_args.

tools/generateLocalizationHeader.ps1:61

• localization_detail::FormatArgument doesn't currently adapt char[N]/string literals on Windows. Because the generated Localization::MessageXxx templates take args as const T&, a string literal deduces T = const char[N], and overload resolution prefers the generic FormatArgument(const T&) (exact match) over FormatArgument(const char*) (array-to-pointer conversion). That leaves char[N] reaching std::make_wformat_args unconverted, which will fail to compile now that the narrow->wide std::formatter<char[N], wchar_t> specializations were removed.
  src/windows/wslc/services/ContainerModel.cpp:133
• These THROW_HR_WITH_USER_ERROR calls use hard-coded user-facing strings. For consistency with other validation errors in this codepath (which use wsl::shared::Localization::...), consider adding localized messages for these port-range validation failures and using them here.

    if (m_containerPort.Count() == 0)
    {
        THROW_HR_WITH_USER_ERROR(E_INVALIDARG, L"Container port must specify at least one port.");
    }