Back to Search-quality baseline: deprecation-aware (Phase 1.1, v1.2.0 candidate)

30 (query, swift_URI, objc_URI) triples. For each: run `cupertino search "<query>" --limit 10` via the dev binary, find rank of `swift_URI` and rank of `objc_URI` in the top-10. Outcome per query: `swift_wins`, `objc_wins`, `both_missing`, or `tied`. Aggregate: count outcomes. Sign test (binomial, scipy.stats.binomtest) on the subset where both URIs appeared.

Harness source: `/tmp/cupertino-search-eval-deprecation.py` (not yet versioned in repo; awaiting design §14.1.2 follow-up). Full JSON dump (all 30 top-10 lists): `/tmp/cupertino-search-eval-deprecation-20260520.json`.