fix: update index.html for Redoc

[shimomo]

index.html の書き方を間違えていたので修正しました。

Summary by CodeRabbit

• 新機能

• バグ修正

• ドキュメント

  • API ドキュメントの表示方式を調整し、ReDoc のスクリプト読み込み位置を最適化して表示の安定性を向上。
  • ReDoc の参照先をローカルから公開ホストの OpenAPI 仕様 URL に更新し、常に最新の仕様を反映。
  • ヘッダー内の不要なスクリプト参照を削除し、読み込み順序を整理。

[coderabbitai]

Walkthrough

docs/v2/index.htmlで、ReDocの読み込み位置をheadからbody末尾へ移動し、spec-urlをローカルopenapi.jsonからhttps://boatraceopenapi.github.io/programs/v2/openapi.jsonに変更。末尾にRedocバンドルのscriptタグを追加。

Changes

Cohort / File(s)	Summary
Docs: ReDoc 埋め込み調整 docs/v2/index.html	head内のRedocスクリプト削除／body末尾にRedocスクリプト追加、ReDocのspec-urlをopenapi.jsonからhttps://boatraceopenapi.github.io/programs/v2/openapi.jsonへ更新

Sequence Diagram(s)

sequenceDiagram
    autonumber
    participant U as User
    participant B as Browser
    participant H as docs/v2/index.html
    participant S as Redoc Bundle
    participant R as ReDoc
    participant O as OpenAPI Spec (GH Pages)

    U->>B: アクセス
    B->>H: HTML取得
    Note over H,B: スクリプトがbody末尾に配置（変更点）
    B->>S: Redocバンドル読み込み
    S->>R: 初期化
    R->>O: GET https://boatraceopenapi.github.io/programs/v2/openapi.json（変更点）
    O-->>R: OpenAPI JSON
    R-->>B: ドキュメント描画

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Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• feat: add Redoc API documentation #66 — docs/v2/index.htmlのReDoc統合（spec-urlとscript配置）に関する変更で直接的に対応する内容。

Poem

ぼくは跳ねるドキュメント兎、ぴょんぴょん
headからbodyへ、タグをお引越し
URLも新しい巣へ一直線
ReDocがひらく海路の地図
風は軽く、リンクはまっすぐ 🌊🐇

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

docs/v2/index.html (1)

9-9: script タグ内の不要な空白の削除＋CDNバージョン固定の検討

• 末尾の空白テキストノードは不要なので削除を。
• 「latest」では将来の破壊的変更の影響を受け得るため、可能なら CDN の特定バージョンに固定する運用を検討してください。

適用例（空白削除のみ）:

-    <script src="https://cdn.redoc.ly/redoc/latest/bundles/redoc.standalone.js"> </script>
+    <script src="https://cdn.redoc.ly/redoc/latest/bundles/redoc.standalone.js"></script>

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📥 Commits

Reviewing files that changed from the base of the PR and between 20d310c and 6c13fab.

📒 Files selected for processing (1)

• docs/v2/index.html (1 hunks)

🔇 Additional comments (1)

docs/v2/index.html (1)

8-8: spec-url の絶対URL化は妥当。公開場所の恒久性だけ確認してください。
GitHub Pages 上で当該 JSON が常時このパスで配信される前提（将来の配置変更やファイル名変更がないこと）と、正しい Content-Type で配信されているかを確認してください。