Accept the Lao desktop layout from the setup form (#257)

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

configs/airootfs/usr/share/omarchy-iso/orchestrator/keyboard.py

@@ -71,5 +71,5 @@ def configure_keyboard(target: Path, language: str, input_method: str | None = N
 def validate_input_selection(input_method: str | None, xkb_layout: str) -> None:
     if input_method is not None and input_method not in {"none", "mozc", "hangul", "pinyin", "chewing"}:
         raise ValueError(f"Unknown input method: {input_method}")
-    if xkb_layout not in {"", "kr"}:
+    if xkb_layout not in {"", "kr", "la"}:
         raise ValueError(f"Unknown input keyboard layout: {xkb_layout}")

test/unit/test_keyboard.py

@@ -82,7 +82,7 @@ class KeyboardConfigurationTest(unittest.TestCase):
                 )
 
     def test_input_choice_survives_while_console_keymap_stays_real(self):
-        for method, keymap, layout in (("mozc", "jp106", ""), ("mozc", "us", ""), ("hangul", "us", "kr"), ("pinyin", "us", ""), ("chewing", "us", "")):
+        for method, keymap, layout in (("mozc", "jp106", ""), ("mozc", "us", ""), ("hangul", "us", "kr"), ("none", "us", "la"), ("pinyin", "us", ""), ("chewing", "us", "")):
             with self.subTest(method=method), tempfile.TemporaryDirectory() as directory:
                 target = self.target(directory)
                 self.assertTrue(KEYBOARD.configure_keyboard(target, keymap, method, layout))
@@ -104,7 +104,7 @@ class KeyboardConfigurationTest(unittest.TestCase):
                 KEYBOARD.configure_keyboard(target, "unknown", "pinyin")
 
     def test_invalid_input_preferences_are_rejected_without_writes(self):
-        for method, layout in (("unknown", ""), ("hangul", "kr\nKEYMAP=ru")):
+        for method, layout in (("unknown", ""), ("hangul", "kr\nKEYMAP=ru"), ("none", "az")):
             with tempfile.TemporaryDirectory() as directory:
                 target = self.target(directory)
                 with self.assertRaises(ValueError):