ruff

44210a49 - [ty] Share code-generator classification across specializations (#25701)

[ty] Share code-generator classification across specializations (#25701) ## Summary `CodeGeneratorKind::from_class` currently keys its retained Salsa query by both the class and its specialization, even though type arguments cannot change whether a class is dataclass-like, a `NamedTuple`, or a `TypedDict`. Generic classes therefore retain duplicate classification entries for each specialization. This removes specialization from the classification query and evaluates inherited code-generator behavior through the unspecialized MRO. Synthesized field and member types continue to use their specialization at the existing call sites; the added generic `dataclass_transform` coverage verifies that `GenericModel[int]` and `GenericModel[str]` retain distinct constructor types.