v2.0.0 にバージョンアップ

[TwoSquirrels]

v2.0 マイルストーン (#24, #31, #41) 消化に伴うリリース準備です。マージ後に v2.0.0 タグでリリースします。

バージョンアップに加えて、ドキュメントの古い記述を更新しています。

• README: 「v1.0 はヘッダーオンリーのみ対応」の WARNING を、実装ファイルの維持 (実装ファイルの tree-shaking 誤削除を修正 + tags.json スキーマ自動移行 #36) を踏まえた現状の記述に差し替え
• cheatsheet: コンパイルエラー FAQ の同様の古い記述を更新
• spec: v2 で入ったライブラリ ID の検証 (ライブラリ登録のリファクタリング #42) をエラー条件に追記
• architecture: モジュール一覧に testutil を追加し、行数の目安を実測に合わせて更新

🤖 Generated with Claude Code

Summary by CodeRabbit

• New Features

  • Improved bundling support for libraries with declarations and implementations split across files.
  • Required implementation files are now retained alongside necessary headers when determining bundled content.
  • Added clearer handling guidance for cases where implementation targets cannot be detected automatically.

• Bug Fixes

  • Added validation requirements for library identifiers, rejecting empty values, path separators, colons, and . or ...

• Documentation

  • Updated usage, troubleshooting, and architecture documentation to reflect the latest bundling behavior and version 2.0 changes.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: d7692a17-311e-40b4-ab71-ae1a01fa93f0

📥 Commits

Reviewing files that changed from the base of the PR and between c8e8f45 and 8379f55.

⛔ Files ignored due to path filters (1)

• Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (8)

• Cargo.toml
• README.ja.md
• README.md
• docs/architecture.md
• docs/cheatsheet.ja.md
• docs/cheatsheet.md
• docs/spec.ja.md
• docs/spec.md

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📝 Walkthrough

Walkthrough

The crate version is bumped to 2.0.0. Documentation updates describe bundling implementation-file retention, tree-shaking limitations, library ID validation, test utilities, and CLI size.

Changes

Bundling behavior documentation

Layer / File(s)	Summary
Bundling behavior documentation README.md, README.ja.md, docs/cheatsheet.md, docs/cheatsheet.ja.md	Documentation explains implementation-file retention, static-analysis limitations, and troubleshooting for missing definitions after bundling.

Library ID validation specification

Layer / File(s)	Summary
Library ID validation specification docs/spec.md, docs/spec.ja.md	The library add specification rejects empty, reserved, separator-containing, and colon-containing IDs.

Release and architecture metadata

Layer / File(s)	Summary
Release and architecture metadata Cargo.toml, docs/architecture.md	The crate version changes to 2.0.0; architecture documentation adds testutil.rs and updates the CLI size estimate.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• TwoSquirrels/risundle#19: Related README English/Japanese documentation changes covering tree-shaking and bundling behavior.
• TwoSquirrels/risundle#25: Related tree-shaking and implementation-file retention behavior documented in this PR.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main change: bumping the project to v2.0.0 for release.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch release-v2.0.0

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[TwoSquirrels]

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