The headless build pinned one CultLib revision for every package. CultMath
0.2.4 needs a newer revision than CultCache's, and bumping the single pin
would have compiled six commits of newer CultCache under the headless tests
while Unity stays on caching-unity-v1.4.0. CultMathRoot/CultMathRevision now
pin CultMath at the 0.2.4 tag; CultLibRoot/CultLibRevision keep CultCache at
45c2f40. Verified: 244 pass with both roots right, and each wrong root is
refused by name.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>