feat(python): support per-layout translations

Tested by modifying a single translation entry.

core/translations/cs.json

@@ -421,7 +421,7 @@
     "homescreen__title_no_usb_connection": "Žádné připojení usb",
     "homescreen__title_pin_not_set": "Není nastaven PIN",
     "homescreen__title_seedless": "Bez seedu",
-    "homescreen__title_set": "Změnit domov. obr.?",
+    "homescreen__title_set": {"Bolt": "Změnit domov. obr.?", "Samson": "Změnit domov. obr.?", "Quicksilver": "Změnit domovskou obrazovku?"},
     "inputs__back": "ZPĚT",
     "inputs__cancel": "ZRUŠIT",
     "inputs__delete": "ODSTRANIT",

core/translations/signatures.json

@@ -1,8 +1,8 @@
 {
   "current": {
-    "merkle_root": "53515eead12df806f139761eddc91f2aa2d3de3b9e0eb831552167ee25897f4a",
-    "datetime": "2024-12-16T11:26:54.578708",
-    "commit": "76301b1e97ea5ce0a2e17967f44a9db2a2e905e4"
+    "merkle_root": "2a0a00d59b3beb98d0c54b7673c6bc807f15717bbb314cff0a39b5f6698dce7d",
+    "datetime": "2025-01-13T10:06:18.733358",
+    "commit": "a1c9d8806dce8b12aebcbd59647e77d0cae629e0"
   },
   "history": [
     {

python/src/trezorlib/_internal/translations.py

@@ -10,6 +10,7 @@ import construct as c
 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

@@ -88,6 +88,8 @@ class LayoutType(Enum):
             return cls.Samson
         if model in (models.T3T1,):
             return cls.Quicksilver
+        if model in (models.T3W1,):
+            return cls.Quicksilver  # TODO: use correct layout for T3W1
         if model in (models.T1B1,):
             return cls.T1
         raise ValueError(f"Unknown model: {model}")