feat(python): support per-layout translated text strings

[no changelog]

python/src/trezorlib/_internal/translations.py

@@ -10,6 +10,7 @@
 from construct_classes import Struct, subcon
 from typing_extensions import Self, TypedDict
 
+from ..debuglink import LayoutType
 from ..firmware.models import Model
 from ..models import TrezorModel
 from ..tools import EnumAdapter, TupleAdapter
@@ -297,6 +298,14 @@ def order_from_json(json_order: dict[str, str]) -> Order:
     return {int(k): v for k, v in json_order.items()}
 
 
+def get_translation(lang_data: JsonDef, key: str, layout_type: LayoutType) -> str:
+    item = lang_data["translations"].get(key, "")
+    if isinstance(item, dict):
+        return item.get(layout_type.name, "")
+
+    return item  # Same translation for all layouts
+
+
 def blob_from_defs(
     lang_data: JsonDef,
     order: Order,
@@ -305,10 +314,11 @@ def blob_from_defs(
     fonts_dir: Path,
 ) -> TranslationsBlob:
     json_header: JsonHeader = lang_data["header"]
+    layout_type = LayoutType.from_model(model)
 
     # order translations -- python dicts keep insertion order
     translations_ordered: list[str] = [
-        lang_data["translations"].get(key, "") for _, key in sorted(order.items())
+        get_translation(lang_data, key, layout_type) for _, key in sorted(order.items())
     ]
 
     translations = TranslatedStrings.from_items(translations_ordered)

python/src/trezorlib/debuglink.py

@@ -79,6 +79,7 @@ class LayoutType(Enum):
     Bolt = auto()
     Samson = auto()
     Quicksilver = auto()
+    LayoutTBD = auto()
 
     @classmethod
     def from_model(cls, model: models.TrezorModel) -> "LayoutType":
@@ -88,6 +89,8 @@ def from_model(cls, model: models.TrezorModel) -> "LayoutType":
             return cls.Samson
         if model in (models.T3T1,):
             return cls.Quicksilver
+        if model in (models.T3W1,):
+            return cls.LayoutTBD  # TODO: use correct layout for T3W1
         if model in (models.T1B1,):
             return cls.T1
         raise ValueError(f"Unknown model: {model}")