a14c3f1181
Add internal/pyproject package with ReadVersion and WriteVersion for pyproject.toml files. Reads [project].version (PEP 621) first, then falls back to [tool.poetry].version. Section boundaries are detected via TOML's rule that headers always start at the beginning of a line (\n[ pattern), so inline arrays with [ characters don't interfere. Config follows the established multi-value pattern: - python.pyproject_toml: single path (opt-in, no default) - python.pyproject_tomls: list for monorepos (overrides single) - --pyproject flag overrides pyproject_toml and clears pyproject_tomls 100% per-package statement coverage maintained across all 14 packages; FuzzReadVersion and FuzzWriteVersion added per fuzzing guidelines. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>