Create CI pipeline for testing local setup #107

Problem

Currently, the local setup in the local/ directory is not automatically tested in CI/CD. This creates a risk of:

• Breaking changes going unnoticed
• Version compatibility issues
• Users encountering setup failures

Solution

Add a GitHub workflow that tests:

• Docker Compose setup (docker compose up --build)
• Plain Docker setup (manual build and run)
• Network connectivity validation
• Version compatibility testing
• Documentation validation

Alternatives

No response