docs(legal): クラスルーム機能のデータ保持期間の記載更新（90日 + 復旧用バックアップ最長1年）#1065
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- reflect the classroom TTL already in production: 30 -> 90 days
("保存期限" wording aligned with the UI)
- disclose the new last-resort backup (EPIC #1049 D7): submissions and
related data (incl. seat numbers) are kept up to 1 year after
deletion, accessible only to operators handling recovery requests,
and are permanently deleted afterwards
- mention that teachers can bulk-download all submissions before the
deadline
- bump the last-revised date to 2026-07-17
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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🚀 Preview deployed: https://smalruby.jp/smalruby3-editor/fix/privacy-policy-retention/ |
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…policy-retention docs(legal): クラスルーム機能のデータ保持期間の記載更新（90日 + 復旧用バックアップ最長1年）
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Summary
EPIC #1049（D7）の残作業: クラスルーム機能のデータ保持に関するプライバシーポリシー記載の更新。
Changes Made
packages/scratch-gui/legal/privacy-policy.htmlの「2.2 クラスルーム機能について」:CLASSROOM_TTL_DAYS=90（2026-07-12 ロールアウト済み）に未追従だった記述を修正。UI の文言「保存期限」に統一実装との対応
CLASSROOM_TTL_DAYS=90）ARCHIVE_RETENTION_DAYS=365+ddb-archive/スナップショット（公開 API なし）Related Issues
EPIC #1049 の Decision Log D7（人間確認事項）の対応
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