Root cause: Docker container was 4 days old and nginx had no
try_files fallback for SPA routes like /details.
Changes:
- Add nginx.conf with try_files $uri $uri/ /index.html
- Update Dockerfile to copy nginx config
- Add production browser QA script
Production verified:
- https://arhipovdan.ru/ shows full-screen 3D demo
- https://arhipovdan.ru/details shows detailed page
- Add continuousPlayback.ts with phase-based state machine
- Add conveyorPath.ts for physics-accurate item positioning (1m=1unit, 1m/s)
- Create SorterDigitalTwinContinuous.tsx for main page 3D scene
- Update MainPage to use ContinuousPlaybackState
- Add 16 unit tests for playback logic
- Add Playwright test script for browser QA
- Screenshots: case1_start, case1_detection, case1_routing, case2_started, case8_or_finished
Timeline per case: ~6.3s (spawn → detection → classification → routing → exit)
Total playback: ~50s for all 8 cases
