v0.1.1

Recommended release. Fixes browser artifact path leakage and checkout-dependent CSS module hashes, documents normalized response replay metadata, and validates the offline rc.8 model catalog. Verified by CI and a fresh fixed-SHA browser acceptance. Asset SHA-256: 80a09bf5e1411685e4380fe660c2bd483f8ba5badf0f243f7239398e212be50f.