CI Pipeline Setup

[sachmii]

Description
Configure a CI pipeline using GitHub Actions that triggers automatically on every pull request. The pipeline must validate the codebase by building services and executing automated tests before integration into the main branch.

Subsystem

• Infrastructure (All Members)

Acceptance Criteria

• .github/workflows/ci.yml created and functional.
• Pipeline performs static analysis/linting and builds all services.
• Docker builds are checked in pipeline.
• Unit tests are included and pass in CI.
• Documentation updated in README.md explaining the CI workflow.