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

Baseline | Class | Headline
--- | --- | ---
`search-quality-baseline-v1.2.0.md` | A + B (canonical lookup + framework root) | MRR 0.9467, P@1 perfect on 46/50
`search-quality-deprecation-baseline-v1.2.0.md` (this doc) | E (deprecation-aware) | Swift wins 30/30, sign-test p = 0.0078

Two of the eight query classes from §1.4 now have documented baselines on the v1.2.0 candidate DB. Six remain (C acronym, D CamelCase fragment, F cross-source, G prose, H symbol-attribute, and the Phase 1.7 agent-eval).