Align release version with v0.0.1

[Alek99]

What changed

• set the root Python package version to 0.0.1
• keep xy.__version__ aligned with the package metadata
• date the 0.0.1 changelog release section

Why

The v0.0.1 release tag failed the release-version gate because the project metadata still declared 0.1.0, and the changelog had no dated 0.0.1 entry.

Impact

The release tag, package metadata, public runtime version, and changelog now agree on 0.0.1.

Validation

• python3 scripts/check_release_version.py --tag v0.0.1
• python3 -m pytest -q tests/test_check_release_version.py
• targeted validate_version_consistency tests (4 passed)

[codspeed-hq]

Merging this PR will not alter performance

✅ 94 untouched benchmarks
⏩ 1 skipped benchmark¹

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_{Comparing agent/align-v0.0.1-release (869c13f) with main (1f6eba5)}

Footnotes

1. 1 benchmark was skipped, so the baseline result was used instead. If it was deleted from the codebase, click here and archive it to remove it from the performance reports. ↩