stage7: archive stage7b_v6_warn_only_ford_source_diagnostic

stage7: archive stage7b_v5_source_gate_indeterminate_l40s_v5a

stage7: archive stage7b_v5_ford_deterministic_source_diagnostic

Add Ford 3x3 checkpoint robustness diagnostic

Add Stage 7b v4 trained-checkpoint diagnostic signal bundle

Archive immutable Stage 7b v3 indeterminate treatment evidence

Publish Stage 7b v3 pre-treatment source gate evidence

Publish Stage 7b source-anchor repeatability diagnostic

Publish Stage 7a matched-update direct-UV control artifacts

Publish Stage 7a exact direct-UV initial textures