* ♻️ Tweak import of Annotated from typing_extensions, they are installed anyway
* ♻️ Refactor _compat to define functions for Pydantic v1 or v2 once instead of checking inside
* ✅ Add test for UploadFile for Pydantic v2
* ♻️ Refactor types and remove logic for impossible cases
* ✅ Add missing tests from test refactor for path params
* ✅ Add tests for new decimal encoder
* 💡 Add TODO comment for decimals in encoders
* 🔥 Remove unneeded dummy function
* 🔥 Remove section of code in field_annotation_is_scalar covered by sub-call to field_annotation_is_complex
* ♻️ Refactor and tweak variables and types in _compat
* ✅ Add tests for corner cases and compat with Pydantic v1 and v2
* ♻️ Refactor type annotations
Sebastián Ramírez