[NimaHp]

Adds the Persian (fa-IR) locale.

What

• Translations.fa-IR.resx with all 814 neutral keys translated
• one line in Domain/UI/SupportedLanguages.cs

Translation decisions

Follows the per-locale convention already documented in AGENTS.md:

• English kept where Persian users expect the English term: Registry, Driver, Firmware, Secure Boot, VBS, V-Sync, UEFI, PCIe, WMI/ETW, AutoLogger, SSD / HDD / NVMe / DDR / SDRAM / LPDDR / HBM, MT/s, MHz, GB, Hibernation, Fast Startup, Service Host, MMCSS, Shell, Task Scheduler, Prefetch, AppX, JSON, plus product names (GitHub, Discord, Microsoft Store, NVIDIA, AMD, Intel, Xbox Game Bar, Click To Do, Recall, Widgets, Task View, Meet Now).
• Naturally translated because Persian has an idiomatic equivalent: Service = سرویس, Scheduled Task = وظیفه زمان‌بندی‌شده, Power Plan = طرح انرژی, Explorer = فایل اکسپلورر, Bloatware = برنامه‌های زائد, Revert = بازگردانی, Dark Mode = حالت تاریک.
• Windows feature names keep the English term in parentheses so they can be found in Windows Settings, e.g. Snap Layouts, Widgets, Click To Do.
• Placeholders such as {0} are preserved verbatim, including multi-placeholder sets ({0}/{1}/{2}).
• No em dashes. Translations are not padded to the English length.
• Literal numbers use Latin digits (50 مگابایت, 24 ساعت, 64 بیتی) because fa-IR on .NET renders DigitSubstitution=Context, i.e. Loc.Instance["Key", value] also produces Latin digits. Persian digits for the literals would have mixed with the code-supplied ones on the same screen.

Verification

• resx_audit: 0 missing, 0 empty, 15 values identical to English (DDR/SDRAM/UEFI/NVMe and similar identifiers)
• placeholder sets identical to the neutral resx for all 814 keys
• dotnet build optimizerDuck.slnx --configuration Release: 0 warnings, 0 errors
• LanguageManagerTests.EveryNeutralKey_ResolvesInEverySupportedLanguage and EveryLocale_PreservesNeutralPlaceholderSets pass with fa-IR registered
• full suite via the console runner with -longRunning 30: Total: 738, Errors: 0, Failed: 0, Skipped: 5
• csharpier check .: clean (302 files)

Review notes

15 values are byte-identical to English on purpose (hardware and firmware identifiers). Everything else is translated.

RTL is picked up automatically: Loc.Direction flips FlowDirection on the root grid, so fa-IR renders right-to-left like ar-SA and he-IL.

One pre-existing limitation is worth flagging, since it shows up in this locale: WPF mirrors only text direction and TextAlignment, never layout. The optimization card template hardcodes LTR layout (HorizontalAlignment="Left" for the tag row, StackPanel Orientation="Horizontal" inside a tag, Grid ColumnDefinitions="*,Auto" for the footer), so three spots read wrong in any RTL language: the tag row, the icon inside a tag, and the footer order. I left it alone to keep this PR translation-only, but it affects ar-SA and he-IL equally and is worth a separate fix.

Closes the Persian translation request.

[itsfatduck]

Thank you so much for the Persian translation and for taking the time to verify everything so thoroughly!

Also, thanks for pointing out the RTL layout issues. I'll look into those separately.