chore(8.0): final pre-RC1 sweep — API consistency, named errors, orphans, zero-cast codebase

tests/performance/typeAware.bench.test.ts

@@ -113,6 +113,10 @@ describe('TypeAware Performance Benchmarks', () => {
       // At 1K entities: ~1-3x speedup (small dataset)
       // At 1M entities: ~5-10x speedup (projected, not measured)
       // At 1B entities: ~10x speedup (PROJECTED, extrapolated)
+      // Assert measurement validity, not a perf number (CI hardware varies).
+      expect(typeDuration).toBeGreaterThan(0)
+      expect(speedup).toBeGreaterThan(0)
+      expect(Number.isFinite(speedup)).toBe(true)
     })
   })