feat(frontend): port codex game-ux helpers (timer tone, progress segments, answer labels)

feat(frontend): adopt modular «Квизик» Mini App (port from repo B working copy)

feat(content): make Phase 3 banks deployable via versioned JSON + idempotent sync

feat(frontend): add age deep-link and backend age endpoint (Phase 2e)

feat(content): Phase 3 import 14-17 & 18+ question banks

feat(quiz): Phase 1 cleanup + Phase 2 age-grading foundation

fix(rollermaze): avoid hidden campaign opener focus

fix(rollermaze): harden campaign menu accessibility and timing

fix(rollermaze): harden campaign frontier and results

feat(rollermaze): improve campaign camera and level menu

docs: refine campaign camera framing

fix: count JSON level titles in production verify

fix: settle tactical pilot cancellation

fix: harden mobile pilot movement and modal input

fix: preserve tactical junction stops

fix: replan tactical route before each roll

fix: harden mobile control pilot

test: enforce level timing slack

feat: expand Световой Рубеж to 50 levels

docs: approve 50-level growth design

fix(rollermaze): recover MAX viewport and audio

fix(rollermaze): buffer quick mobile taps

fix(rollermaze): fit mobile onboarding copy

test(rollermaze): cover mobile help placement

fix(rollermaze): keep mobile help above controls

fix(rollermaze): hide desktop hints in narrow viewports

fix(rollermaze): accept sparse level tails in verifier

fix(rollermaze): preserve audio phase after scheduler delays

fix(rollermaze): harden lifecycle and release verification

fix(rollermaze): harden audio lifecycle and timing

fix(rollermaze): harden electronic audio scheduling

fix: harden classic gameplay release

fix(quiz): separate weekly targets from player ranks

docs(quiz): plan catalog and league follow-up

fix(quiz): separate weekly targets from player ranks

docs(quiz): plan catalog and league follow-up

docs: choose TypeScript branch as canonical for engagement and monetization

fix(quiz): improve catalog layout and league rivals