- Fix PPTX/PDF export: Puppeteer URL port mismatch (80 → 3000)
- Fix backend export_utils to use NEXT_INTERNAL_URL env var
- Add Chromium to frontend Dockerfile for Docker-based export
- Fix slide edit socket hang up with asyncio.wait_for() timeouts
- Add FastAPI StaticFiles mounts for /static and /app_data
- Add Next.js rewrite for /static/ to proxy to backend
- Show template thumbnail in master decks admin page
- Add error logging to ReviewWorkflow component
- Add Docker env vars for web service (APP_DATA_DIRECTORY, app_data volume)
- Add project README in English
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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