docs: add git sign-off reminder to CLAUDE.md

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: phernandez

CLAUDE.md

@@ -240,4 +240,7 @@ Basic Memory uses `uv-dynamic-versioning` for automatic version management based
 - **Version management**: Versions automatically derived from git tags via `uv-dynamic-versioning`
 - **Configuration**: `pyproject.toml` uses `dynamic = ["version"]`
 - **Release automation**: `__init__.py` updated automatically during release process
-- **CI/CD**: GitHub Actions handles building and PyPI publication
+- **CI/CD**: GitHub Actions handles building and PyPI publication
+
+## Development Notes
+- make sure you sign off on commits