## Changes
### Database Integration
- Add MySQL 8.0 service to docker-compose.yml
- Configure DATABASE_URL environment variable for server
- Add health check for MySQL service
- Create mysql_data volume for data persistence
### Dockerfile Improvements
- Generate Prisma Client in builder stage
- Copy Prisma Client from correct pnpm workspace location
- Ensure Prisma Client is available in production container
### Client-Mobile Fixes
- Remove deprecated StampDock.vue component
- Fix voting store API usage in VotingPage.vue
- Add type assertion for userTickets in connection.ts
- Add remark property to AwardConfig interface in voting.ts
## Testing
- All containers start successfully
- Database connection established
- Redis connection working
- 94 participants restored from Redis
- Vote data synced (20 votes)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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