[zzylol]

Summary

• add a required-candidate MVP CI job for control-plane and data-plane
• check formatting and compilation
• run Clippy over all targets
• run the full control-plane test suite
• reproduce the sibling checkout layout required by path dependencies

Verification

• workflow YAML parsed locally
• cargo fmt -p control_plane -p data_plane -- --check
• the same check/test commands have passed on the current stacked implementation branches