Unify service list between GitHub workflow and compose.yaml to avoid duplication

[coderabbitai]

Problem

Currently, service names are hard-coded in both the GitHub workflow () and the file. This creates a maintenance burden where every addition or removal of services in must be manually duplicated in the workflow file. A single discrepancy can silently break the health-check process.

Proposed Solution

Consider one of these approaches:

1. Export the service list to a single source of truth (e.g., in the example root) and reference it from both the Compose Action and the health-check steps
2. Generate the service array dynamically using docker compose config --services

This would ensure consistency and reduce maintenance overhead when services are added or removed.

Context

This issue was identified during code review of PR #33.

Related Links:

• PR: Feature/spring prometheus grafana #33
• Comment: Feature/spring prometheus grafana #33 (comment)
• Requester: @igorcampos-dev