chore: bump codeflash-benchmark version to 0.3.0

[KRRT7]

Summary

• Bump codeflash-benchmark from 0.2.0 to 0.3.0
• First automated release using the new publish-benchmark job in publish.yml

[claude]

PR Review Summary

Prek Checks

✅ All checks passed (ruff check, ruff format) — no issues found.

Mypy

✅ No type errors in changed files.

Code Review

✅ No critical issues found. This PR cleanly migrates codeflash-benchmark to dynamic versioning:

• Moves version source of truth to codeflash_benchmark/version.py (replacing inline __version__ in __init__.py)
• Switches build system from setuptools to hatchling + uv-dynamic-versioning
• Updates publish.yml workflow to reference version.py and removes the now-unnecessary pyproject.toml version verification step
• __init__.py re-exports __version__ correctly for backwards compatibility

Test Coverage

File	PR	Main	Delta
codeflash_benchmark/__init__.py	100%	100%	0%
codeflash_benchmark/version.py (new)	100%	N/A	✅ New file fully covered
Overall	78%	78%	0%

✅ No coverage regressions. New file has 100% coverage.

Note: 8 pre-existing test failures in tests/test_tracer.py (present on both main and this branch — unrelated to this PR).

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Last updated: 2026-02-19