- Remove hardcoded values from docker-compose.yml
- Use environment variables from .env file instead
- Update .env.example with placeholder values and instructions
- Update DOCKER_README.md with .env file setup instructions
- Fixes WebSocket origin check by allowing PHX_HOST to be configured per environment
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Created .env.example with all required environment variables
- Updated .gitignore to exclude .env files from version control
- Includes instructions for generating secure SECRET_KEY_BASE
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>