smix-selector-resolver 1.0.0

smix-selector-resolver — DFS pre-order + visibility filter + spatial filter (near/below/above/leftOf/rightOf/inside) + index pick (nth/first/last) + anchor-only base form short-circuit (stone, hot path). Ported from now-retired TS source: src/core/resolve-selector.ts (279 lines, v1.5 c5i-d + v1.6 c4 lock-in).