Add versionCheckpointNames for Pantheon lowman tag labels

[owens1127]

Summary

• Add versionCheckpointNames to /manifest for Pantheon versionIds
• Derive boss labels by dropping the trailing adjective (e.g. "Insurrection Prime Revolutionary" -> "Insurrection Prime", "Oryx Exalted" -> "Oryx")

Test plan

• checkpoint-names.test.ts covers Pantheon name derivation
• Manifest route test passes
• Verify /manifest.versionCheckpointNames after deploy

Made with Cursor

[barecheck]

Barecheck - Code coverage report

Total: 91.47%

Your code coverage diff: 0.02% ▴

Uncovered files and lines

File	Lines
src/services/manifest/checkpoint-names.ts	32, 49