As a developer, I want pre-merge tests for Advanced Container Storage Configuration, so that pull requests are validated before merging and regressions are caught early.

Details

Implement pre-merge testing for Advanced Container Storage Configuration to validate changes before they are merged:

• Set up pre-merge test jobs for openshift/api changes
• Set up pre-merge test jobs for openshift/machine-config-operator changes
• Validate ContainerRuntimeConfig API schema changes
• Test storage.conf generation from ContainerRuntimeConfig
• Verify configuration limits enforced (5 for layer stores, 10 for image/artifact stores)
• Run unit tests for MCO controller changes
• Execute basic integration tests for storage configuration

Acceptance Criteria

• Pre-merge test jobs configured and running
• Tests execute automatically on pull requests
• API validation tests pass before merge
• MCO unit tests pass before merge
• Configuration rendering tests validate storage.conf output
• Test failures block pull request merging
• Pre-merge tests complete in reasonable time
• Test results visible in PR status checks