feat: Integrate Enterprise SonarQube for Code Quality Scanning

### Background

We need to configure Enterprise SonarQube scanning for this repository to ensure code quality and security checks are part of our CI/CD pipeline. Currently, we need to migrate/setup the Enterprise edition rather than the free tier.

### Objective

Integrate the SonarQube Github Actions workflow.

### Tasks

- [ ] Add `.github/workflows/sonarqube.yml` to trigger on `pull_request` and `push` to `develop`/`main`.
- [ ] Configure `SONAR_HOST_URL` and `SONAR_TOKEN` secrets in the repository settings.
- [ ] Set `sonar.projectKey` to match this repository name.
- [ ] Configure `sonar.exclusions` to exclude build, dependency, and coverage directories.