feat: Support nested declarations in fuzzy attributes

[rodrigobnogueira]

Summary

This PR enables factory.fuzzy attributes to correctly evaluate nested declarations (e.g. LazyAttribute, SelfAttribute, LazyFunction) when passed as arguments.

Fixes

• Closes FuzzyChoice does not accept SelfAttribute #1050: Resolves the issue where FuzzyChoice does not accept SelfAttribute.
• Addresses the "Properly evaluate nested declarations" item in the project's ideas list.

Changes

• Core Logic: Added a _resolve helper mechanism to BaseFuzzyAttribute to recursively evaluate declarations passed as parameters.
• Fuzzy Classes Updated:
  • FuzzyChoice: Now resolves choices generator.
  • FuzzyInteger, FuzzyDecimal, FuzzyFloat: Now resolve low and high bounds.
  • FuzzyDate: Now resolves start_date and end_date.
  • FuzzyDateTime: Now resolves start_dt and end_dt.
• Backward Compatibility: FuzzyDate and FuzzyDateTime logic was adjusted to defer validation until fuzz() time if (and only if) declarations are used, ensuring existing usage (e.g. end_date=None) remains unchanged.

Verification

• New Tests: Added comprehensive test cases for:

  • FuzzyChoice with LazyAttribute, SelfAttribute, etc.
  • FuzzyInteger and FuzzyFloat with dynamic bounds.
  • FuzzyDate and FuzzyDateTime with dynamic, instance-dependent bounds.
  • Specific Case: Verified FuzzyDate(start_date=SelfAttribute('sys_created_at')) works as expected.

• Suite: Ran full test suite; all 457 tests passed.

• Linting: Verified compliance with project standards (PEP8/flake8, isort).

• Docs: Marked the feature as "Accomplished" in the ideas list.