refactor(model-resolution-rework): drop client-side identity logic, use view-layer

Merge remote-tracking branch 'origin/main' into merge/main-into-v2-cleanup

WIP: v2 cleanup checkpoint before merging origin/main

Embeds: histogram route, leaderboard slices + sort, brand mark; cross-source row dedup

Refactor to align on benchmark hierarchy

Update with datafix v2

Tighten eval cards UI and clean up stale local data

Separate policy and researcher views

Add interpretive signals, corpus dashboard, and slice browser

Aggregate setup aliases and clarify benchmark variants

Add per-benchmark comparison histograms on model detail

Refresh eval cards UI and backend data flow

fix bugs

ux changes

feat: refine model and benchmark exploration

redesigned

fix data

Refactor: Update benchmarks with realistic data, fix UI stats, and improve About page

new ux