Maxim Dolgolyov 6cd0cf34d4 fix: глубокое ревью онлайн-урока — 14 исправлений (P0-P3) ...

P0 — краши:
- CREATE TABLE classroom_hands в migrate.js (отсутствовала)
- emit→emitToUser для allowDraw/revokeDraw/mutePeer (WS доставка)
- deleteHistorySession обёрнут в db.transaction() + добавлена очистка hands/invites

P1 — гонки и безопасность:
- deletePage: 4 SQL в транзакции (race при параллельной записи)
- postStrokes: MAX(seq) внутрь транзакции (дубли seq)
- duplicatePage: добавлен seq в INSERT (NOT NULL crash)
- hasAccess для lowerHand/getHands/reactToMessage (утечка данных)
- loadTemplate: проверка owner шаблона
- attachment_url: только /uploads/* (XSS через javascript:/data: URI)
- wbFlushBatch: backoff при ошибке (было 12.5 req/s retry)
- pagehide leave: keepalive fetch для гарантированной доставки
- _wbOwnIds: cap 2000 (утечка памяти на длинных уроках)

P2-P3:
- simState: лимит 64KB (предотвращает OOM broadcast)
- ws-server кеши: cleanup drawCache при invalidateSession

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-16 09:22:39 +03:00

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css

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js

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403.html

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404.html

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admin.html

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analytics.html

feat: universal sidebar via sidebar.js + stale ID cleanup

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biochem-library.html

feat: universal sidebar via sidebar.js + stale ID cleanup

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biochem-pathways.html

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biochem-properties.html

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biochem-reactions.html

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biochem.html

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board.html

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classes.html

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classroom.html

fix: глубокое ревью онлайн-урока — 14 исправлений (P0-P3)

2026-04-16 09:22:39 +03:00

collection-rb.html

feat: universal sidebar via sidebar.js + stale ID cleanup

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collection.html

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course.html

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crossword.html

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dashboard.html

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favicon.svg

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flashcards.html

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gradebook.html

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guest-board.html

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hangman.html

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homework.html

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knowledge-map.html

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lab.html

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lesson-editor.html

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lesson-history.html

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lesson.html

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library.html

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live-quiz.html

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login.html

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parent.html

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profile.html

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question-bank.html

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red-book-biomes.html

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red-book-games.html

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red-book.html

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sitemap.html

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teacher-guide.html

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theory.html

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