Fix ruff lint errors

docs/llm-translation.md

@@ -93,8 +93,8 @@ fields:
 
 ```python
 class Hello(msgspec.Struct, tag="hello"):
-    langs: list[str]           # as today: languages the model can produce
-    model: str = ""            # free-form model string (logging, debugging)
+    langs: list[str]  # as today: languages the model can produce
+    model: str = ""  # free-form model string (logging, debugging)
     modes: list[str] = ["segments"]  # job granularities accepted
 ```
 

docs/migrate.md

@@ -50,6 +50,7 @@ class Node(msgspec.Struct, omit_defaults=True):
     #: "Language index maintenance" below).
     langs: dict[str, True] = {}
 
+
 class Data(msgspec.Struct):
     ...
     #: API keys gating the translator service WebSocket (/_translate/{key}):