Added entrypoint wrapper script that injects custom.css into the main app.css file at container startup. This allows the custom Pivoine theme to be applied without building a custom image. Changes: - Mount custom.css to static assets directory - Add entrypoint-wrapper.sh to inject CSS on startup - Append custom CSS to both app.css and hashed app-*.css 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>