Backend: Compose File Generator Endpoint #5
Description
Description.
No API currently generates a valid docker-compose.yml from selected services.
Describe the solution you'd like
Add /api/compose/generate endpoint that converts user config into valid YAML.
Describe alternatives you've considered
Client-side YAML generation, but backend ensures validation consistency.
Use Case
Backend generates consistent, validated compose files for download/export.
Additional context
Use js-yaml to produce output; integrate validator service later.