feat: FT209 functools — partial / lru_cache / reduce / wraps#581
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…580) - partial: キーワード引数固定の累乗関数（ファクトリパターン） - lru_cache: 再帰フィボナッチのメモ化（fib(50)を51回の計算で達成） - reduce: sum/product/max/min の逐次集約（初期値必須パターン確立） - wraps: デコレータのメタデータ保持（__name__/__doc__/__wrapped__） - Python 3.14: @wraps 使用時の type: ignore が不要になることを確認 - *args: object でANN401違反回避（Any は禁止） - 22 tests passed / mypy strict / ruff clean Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
partial: キーワード引数固定の累乗関数（ファクトリパターンの実証）lru_cache: 再帰フィボナッチのメモ化 — fib(50) を 51 回の計算で達成reduce: sum / product / max / min の逐次集約（初期値必須パターン確立）wraps: デコレータのメタデータ保持（__name__/__doc__/__wrapped__）@wraps使用時のtype: ignore[return-value]が不要になることを確認*args: objectで ruff ANN401 違反を回避（Anyは禁止）Closes #580
Test plan
uv run pytest— 22 passed in sandboxuv run mypy— no issuesuv run ruff check/ruff format --check— all passed🤖 Generated with Claude Code