Плавающий помощник на всех страницах (через sidebar.js + inject в учебник):
контекстные подсказки по странице, проактивные напоминания из реальных данных
(домашка с дедлайном, карточки к повторению, серия под угрозой, квест дня),
поздравления (левелап/серия) и панель «Спроси Квантика» (поиск по FAQ + точка
расширения под локальную модель). Консервативно: дневной лимит, кулдауны,
«не показывать», выключатель в профиле. Лицо — pet-sprite, данные — /api/pet.
Бэкенд: миграция 062 (assistant_enabled + assistant_seen, cross-device «видел»),
GET /api/assistant/context, POST seen/dismiss/ask, PATCH settings — гейт фичи 'pet'.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Мелодию-вызов перевёл с кастомного Web Audio на общий движок звуков LS.sfx:
- длинный вестминстерский бой теперь в sound.js (звук lesson_start);
- api.js лениво подгружает sound.js на любой странице и играет lesson_start
по SSE classroom_started (вместо собственного синтезатора);
- отдельный pref lessonCall + тумблер «Вызов на урок» и кнопка прослушивания
в профиле (Настройки → Звуки); уважает мастер-тумблер и громкость;
- lesson_start выведен из категории classroom (управляется своим тумблером);
- разблокировка AudioContext по первому жесту перенесена в sound.js.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Классы .lb-tab/.lb-tabs/.lb-row/.lb-list/.lb-avatar и др. отсутствовали
в profile.html — карточка рейтинга рендерилась голой. Добавлены стили
под дизайн-систему профиля.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Раньше карточка пряталась при отсутствии данных API — выглядело как
«рейтинга нет». Теперь всегда видна: либо список, либо подсказка
«Пока нет данных рейтинга».
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Контейнер lb-section не попал в файл ранее — loadLeaderboard молча
выходил. Теперь рейтинг реально виден в табе «Достижения».
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Карточка рейтинга с табами Неделя/Всё время, /api/gamification/leaderboard,
самодостаточный JS (свой esc). Рейтинг убран с дашборда ранее.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Зафиксирована накопленная незакоммиченная работа рабочего дерева, КРОМЕ файлов
учебника «Химия 7» (migration 046, chemistry_7_*.html, chem7_svg.js, тест —
оставлены незакоммиченными по запросу).
Включает: модуль биохимии (ядро BIO, 3D VSEPR, химдвижок, баланс, challenges,
пути из БД), System Health Level 1 (вердикт/мониторинг), а также frontend-
страницы и lab/textbooks-правки параллельной сессии.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The shop item card .owned/.active states used semi-transparent fills
(rgba(34,197,94,0.03) / rgba(6,214,224,0.04)) for a subtle color hint.
Phase 6 made the free background presets auto-owned, so every
'Применить'-able card got the translucent overlay — and with an
animated background active, the page-wide gradient bled straight
through the content (see screenshot).
Switch to fully opaque #fff fills, keep the color cue in the border
plus a thin inner-shadow halo. Same visual signal, no bleed.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
A new cosmetic family: a fixed-position overlay painted behind every
page of the app, switchable from the profile shop. 4 free presets + 6
paid (250-1200 coins) so the new economy has another sink. Every
animation respects prefers-reduced-motion and falls back to its static
gradient.
Catalogue (migration 035):
free: none, gradient-soft, dots, dark
paid: gradient-flow, grid, bubbles, stars (mid)
aurora, nebula (premium)
Backend:
• migration 035 adds users.active_background + rebuilds shop_items
CHECK to include 'background' (standard SQLite 'new + copy + swap')
and seeds 10 items
• shopController.getMyActive returns { background: { slug } } and
activateItem handles type='background' (stores bare slug in
active_background) + skips the user_purchases check for price=0
so free presets work for everyone without per-user rows
• routes/shop validate schema lets 'background' through
Frontend:
• api.js applyCosmetics injects <div id='ls-bg-fx'> at body start
and toggles class to bg-<slug>. Cleared backgrounds remove the
element so dark→light transitions don't leave artifacts.
• ls.css gains a self-contained 'ANIMATED BACKGROUNDS' block:
keyframes per animated slug (ls-bg-flow, ls-bg-grid-scan,
ls-bg-bubble-rise, ls-bg-stars-twinkle, ls-bg-aurora-spin,
ls-bg-nebula-pan) wrapped in a prefers-reduced-motion kill-switch.
Same .bg-<slug> classes are reused for the .bg-preview swatches.
• profile.html shop:
- new 'Фоны' filter button between Рамки and Титулы
- _renderItemPreview type='background' draws a real 56-aspect swatch
(same CSS as the page bg — what you see is what you apply)
- _isItemActive matches by slug for background type
- free items (price===0) treated as auto-owned in render so users
can apply them without a fake 'purchase' step
Verified: getMyActive returns { background: { slug: 'nebula' } } after
flipping users.active_background; activate path updates the row.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds achievement coverage for every feature shipped since the original
seed: exam-prep (math9), textbooks, classroom/board, biochemistry,
live-quiz, flashcards, hangman/crossword, pet, plus a new 'social' group
for class & leaderboard wins and 'consistency' extensions (streak_100,
goal_30, early_bird, night_owl).
74 achievements now (was 36), grouped into 7 sections:
onboarding (3) → volume (8) → mastery (16) → consistency (7) →
exam (9) → exploration (21) → social (10)
A new top-level group 'exam' slots between consistency and exploration
in the profile UI.
What's wired in service.checkPhase3Achievements (called from
checkAchievements):
• streak_100 — extends the existing streak track
• goal_30 — 30 days with daily_goals fully met (SUM check)
• early_bird / night_owl — strftime('%H', xp_log.created_at)
• exam_first / 25 / 100 — exam_attempts where is_correct=1
• exam_variant_clear / 5_variants — perfect mock-variant sessions
• exam_topic_master — ≥10 attempts at ≥90% on a single subtopic
• exam_mock_done / pass / perfect — exam_mock_sessions.score
• tb_first_para — textbook_progress
• fc_first_deck / 100_cards / 1000_cards — flashcard_reviews
• bc_first_molecule / 5_challenges / 20_challenges — bio_user_*
• game_win_5 / 25 — xp_log reason IN (hangman_win, crossword_win)
• pet_streak_7 / 30 — users.pet_petting_streak
• lq_first / 3_quizzes — live_answers grouped by session
• cr_first_join / 5 / 25_lessons — classroom_attendance
• class_5_members / 25 — teacher's biggest class
• parent_link — parent_links presence
• lb_top10 / lb_top1 — weekly XP rank among students
What's deferred (catalog entry only, no trigger yet):
• tb_chapter_done / tb_book_done / tb_3_books — need to parse
textbook_progress.paragraphs_read JSON against textbook structure
Every block is wrapped in its own try/catch so a missing table on a
legacy install can't take down the whole achievement sweep.
Verified end-to-end: admin user picked up 7 new unlocks on first
checkAchievements call after seed.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Achievements gain four new columns: group_slug, track, tier, sort_order.
Existing 36 are backfilled into 5 groups (onboarding/volume/mastery/
consistency/exploration) by migration 030; 'social' stays empty until
Phase 3 adds class/leaderboard/live-quiz tracks.
Tracks bundle escalating thresholds into one progression (tests_10/50/
100 → track='tests', tiers 1-3), so the UI can show '★★★' on the top
tier and the user understands the relationship. sort_order is reserved
in blocks of 10 inside groups of 100, leaving room for inserts without
renumbering.
Backend:
• migration 030 adds the columns + index + backfill UPDATEs
• _shared.ACHIEVEMENT_DEFS gains group/track/tier/sort_order per row
• _shared exports new ACHIEVEMENT_GROUPS metadata for the UI
• service.seedAchievements writes the new fields on insert AND
backfills them via UPDATE on existing rows (fresh installs +
pre-migration installs both end up consistent)
• _shared.stmts.getAllAchs SELECT updated, ORDER BY sort_order
• gamification/api.getAchievements forwards the new fields
Frontend:
• profile.html groups achievements by group_slug with a per-section
header (icon + title + 'unlocked / total' chip) and a tier-star
badge (★★ etc.) on tier ≥ 2 items
• Hard-coded ACH_GROUPS mirror of the backend list (small, stable)
• New CSS for .ach-group / .ach-group-head / .ach-tier
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Shop items of type 'frame' now render a real avatar-sized preview with
the frame's CSS applied (instead of a generic lucide icon) so buyers
see exactly what they're paying for. Title items get a tag-shaped
preview in their color. The avatar-frames section above the shop also
shows the user's actual avatar inside the frame circles, not 'LS' text.
Sidebar nav-avatar now:
• renders the uploaded avatar_url instead of always showing initials
(LS.initPage + new LS.refreshNavAvatar helper)
• picks up frame CSS on every page via applyCosmetics — previously
only dashboard.html applied it
• repaints immediately after picking/deleting an avatar preset
(avPickPreset / avDelete now call LS.setUser + LS.refreshNavAvatar)
Backend getMyActive resolves avatar_frame to {id, css} for both
gamification frames ('fire', 'crown', ...) and shop-purchased frames
('shop_<id>'), so the client doesn't need a second round-trip to
look up the CSS.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- backend/uploads/avatars/preset_01..27.png — иллюстрированные персонажи
- POST /api/avatar/preset — мгновенная установка без модерации
- GET /api/avatar/presets — список доступных пресетов
- profile.html: галерея пресетов в модалке аватара, доступна студенту/учителю/админу
- кастомная загрузка с модерацией остаётся только для студентов
Безопасность:
- tests/🆔 скрыть is_correct и explanation для студентов (P0)
- SQL injection: limit/offset через placeholder вместо template literal
- Stored XSS: stripTags для lesson comments, flashcards, redBook sightings
- profile.html: escape e.message в showMsg (XSS через server error)
- attachment_url: валидация только /uploads/* путей
- requestId: генерировать UUID сервером, не доверять клиенту
- register: скрыть token_version из ответа
Надёжность:
- register: обработка UNIQUE constraint race condition
- pet buyBg: re-check баланса внутри транзакции
- DB errors: скрыть e.message в testController/questionController/courseController
- preferences: лимит 50KB на размер JSON
UX:
- board.html: debounce 250ms на search input
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- 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>
- Add js/sidebar.js: generates full sidebar HTML into #app-sidebar,
handles role-based visibility, active link (with prefix matching),
toggle wiring, collapsed state, board/features/notif init
- Replace <aside class="sidebar">...</aside> with <aside id="app-sidebar">
across all 35 standard-layout pages via scripts/apply-sidebar.js
- Add notifications.js to 5 pages that were missing it
- Fix api.js initPage(): skip toggle re-wiring if data-sb-wired set,
fix active link selector .sb-item → .sb-link
- Remove stale sbl-*/nav-admin/btn-upload-nav getElementById calls
that crashed after sidebar replacement (lab, classes, collection,
crossword, hangman, knowledge-map, library, pet, profile)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Classroom performance:
- WebSocket server (ws-server.js) for low-latency cursor & stroke preview
Replaces HTTP POST per event → eliminates per-message auth overhead
Session member cache (30s TTL) avoids SQLite query per WS message
Fallback to HTTP POST when WS not connected
- Cursor throttle reduced 100ms → 33ms (~30fps)
- Stroke preview throttle reduced 50ms → 20ms
- whiteboard.js: render() is now rAF-gated (_doRender/_rafPending)
Multiple render() calls within one frame collapse into one repaint
document.hidden check — zero CPU when tab is in background
visibilitychange listener restores canvas on tab focus
Guest board:
- guestClassroom.js route: public token-based read-only access
- guest-board.html: name entry + read-only whiteboard + SSE
- SSE: addGuestClient/removeGuestClient/emitToGuests
Screen share picker:
- Discord-style modal with tab switching (screen/window/tab)
- Live video preview before confirming share
- useExistingScreenStream() in ClassroomRTC
Fullscreen exit overlay:
- #cr-fs-exit-overlay button inside cr-board-wrap
- Visible only via CSS :fullscreen selector (touchpad users)
File sharing from library:
- Teacher picks file from library, sends as styled card in chat
- crDownloadLibraryFile() fetches with Bearer auth
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Maxim Dolgolyov