implement-value-object

Features and purpose

Create immutable domain value objects with frozen dataclass pattern and validation. Use when implementing domain value objects, creating immutable data structures, or adding validation to values. Covers @dataclass(frozen=True), object.__setattr__() pattern in __post_init__, factory methods (from_string, from_dict, from_content), and validation in frozen context. Works with Python dataclasses in domain/value_objects/ and domain/values/ directories.

Quick start

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