v0.8.0

Breaking changes:

• csfield should only be used for constructs that cannot build from None. Every other construct should use the new csfield_noinit, csfield_const or csfield_default.
• Removed wildcard imports, so it may be necessary to change some import statements in your code when you use non-public APIs.
• Bumped minimum required Python version to 3.10 (previously: 3.9 which has reached end-of-life).
• Removed version.py, use importlib.metadata instead to get the version number.

New features:

• Added csfield_const to create dataclass fields that are excluded from constructor and have a constant value.
• Added csfield_default to create dataclass fields that have a default value.
• Added csfield_noinit to create dataclass fields that are excluded from constructor.

Changes:

• Optimize type stubs for Computed, Default and Rebuild in conjunction with ty.
• Optimize type stubs for Checksum, to represent that it can build from None.
• Use PEP604 union syntax "X | Y" instead of "Union[X, Y]" and "X | None" instead of "Optional[X]" in type hints.

Organizational changes:

• Use uv as a project management tool and poe as a task runner.