### Description

When Persian is added as a second keyboard layout in Omarchy (Hyprland `kb_layout = "us,ir"`), the `ir` layout resolves to its default xkb variant **`pes`** (the newer ISIRI 9147 standard). Iranian users coming from Windows expect the legacy **Windows Persian layout**, which xkb ships as the `ir(winkeys)` variant.

The most noticeable difference:

| Key | `ir` (pes, Omarchy default) | `ir(winkeys)` (Windows Persian) |
|---|---|---|
| Key above Enter (US `'` label) | `\` (literal backslash) | **پ** |
| `c` key | **پ** | ئ |

So on a default Omarchy install, pressing the key that is پ on Windows Persian keyboards types `\` instead — and other keys are shifted too. This makes the out-of-the-box Persian layout feel "broken" to anyone used to Windows.

Related but separate from #9552 (that one is about fcitx5 breaking layout switching; this is about the default layout variant itself).

### Steps to reproduce

1. Set Hyprland input to `kb_layout = "us,ir"` (e.g. in `~/.config/hypr/input.lua`) and switch to Persian.
2. Press the key above Enter (US `'` key).
3. A `\` is typed instead of پ.

### Expected behavior

The Persian layout should match the Windows Persian keyboard that Iranian users are accustomed to, or at least offer it as the default variant.

### Verified fix

Adding the `winkeys` variant fixes it:

```lua
hl.config({
  input = {
    kb_layout = "us,ir",
    kb_variant = ",winkeys",  -- Windows-style Persian layout
    kb_options = "grp:alt_shift_toggle",
  },
})
```

Verified working on this system — پ now types correctly from the key above Enter.

### Suggested fixes (any of these)

1. **Default the Persian variant to `winkeys`** when Persian is selected during setup / layout config (e.g. emit `kb_variant = ",winkeys"` alongside `kb_layout = "us,ir"`).
2. **Offer a choice** between "Persian (Windows)" (`ir(winkeys)`) and "Persian (ISIRI 9147)" (`ir(pes)`) in the setup wizard.
3. **Document it** in the default `input.lua` comments so users know `ir` alone is ISIRI 9147, not the Windows layout.

### System details

- Omarchy 4.0.2-1 (Arch Linux, Hyprland)
- CPU: Intel i7-7700K, GPU: NVIDIA GTX 1060 6GB
- Keyboard: `us,ir` with `grp:alt_shift_toggle`

Full debug info: `omarchy-debug --no-sudo --print` (happy to upload to logs.omarchy.org if needed).