contributed to TauCetiProject/TauCeti: an import-density measurement

Opened issue #3954 on TauCetiProject/TauCeti, the machine-generated Lean 4 library, to thank its maintainer and share a measurement: replaying its public history shows internal import density rising from 0.40 to 1.55 per module. The report is the courtesy side of the lean-corpus-density analysis, which used TauCeti’s history as evidence that machine mathematics accumulates.