chore(test): increase vitest coverage thresholds

Update coverage thresholds to align with vitest.config.passing.mts:
- lines: 80% → 90%
- branches: 80% → 90%
- statements: 80% → 90%
- functions: 80% → 85%

Author: jdalton

.config/vitest.config.mts

@@ -98,10 +98,10 @@ export default defineConfig({
         : ['registry/dist/**/*.{js,mjs,cjs}'],
       all: true,
       thresholds: {
-        lines: 80,
-        functions: 80,
-        branches: 80,
-        statements: 80,
+        lines: 90,
+        functions: 85,
+        branches: 90,
+        statements: 90,
       },
     },
   },