Maxim Dolgolyov ba20a76839 feat: add sound & prefs settings tab in profile ...

- New 'Настройки' tab in profile.html between Закладки and Безопасность
- Sound section: global enable toggle, volume slider, per-category toggles (ui/classroom/gamification/quiz)
- Test buttons to preview each sound category
- Appearance section: animation toggle, push notifications toggle
- All sound prefs persist via LS.sfx localStorage (ls_sfx key)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-04-14 19:47:59 +03:00

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js

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500.html

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analytics.html

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biochem-library.html

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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

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collection-rb.html

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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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pet.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-ecosystem.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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