test(properties): add hypothesis property-based testing and fix __iadd__ padding bug#44
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…d__ padding bug - Add `hypothesis>=6.0.0` to the dev dependency group in pyproject.toml and update uv.lock. - Create tests/test_properties.py with property-based test suites using hypothesis to verify mathematical invariants, involution properties, and bitwise commutativity. - Include the exact reproduction test case for addition after inversion as described in issue #36. - Fix bug in BitVector.__iadd__ where residual 1s in destination padding words (such as from __invert__) were not masked out prior to bitwise ORing new bits, causing corruption when appending to modified vectors. Fixes #36 Refs #39
- Add hypothesis strategy generating arbitrary non-negative start and stop slice indices. - Verify BitVector slicing __getitem__ against standard Python string slicing str(bv)[start:stop] across 16-bit word boundaries.
- Add `hypofuzz>=24.0.0` to dev dependencies in pyproject.toml and update uv.lock. - Create scripts/fuzz.sh as a dedicated executable script to run adaptive, coverage-guided continuous fuzzing on tests/test_properties.py. - Document hypofuzz usage and continuous fuzzing commands in AGENTS.md and README.md. Fixes #39
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hypothesis>=6.0.0to the dev dependency group in pyproject.toml and update uv.lock.__iadd__implementation known bad #36.Fixes #36
Refs #39