test: reduce brittle assertions and test-only runtime paths (#9289)

* test: focus assertions on behavioral evidence

Prune redundant and wording-coupled checks while retaining diagnostic, parser, recovery, and cleanup coverage.

* refactor: remove test-only wrappers and duplicate checks

Exercise production operations through test fixtures, remove unused adapters, and keep managed-member uncertainty guidance under its existing owner.

* test: focus process validation on diagnostic facts

* refactor: remove test-only runtime helpers

Move semantic evidence fixture setup out of runtime and remove unused Windows settle recovery helpers while checking configured defaults independently.

* test: focus artifact diagnostics on format facts

* test: verify retained cleanup guidance delivery

src/domain/javascript/javascriptSemanticGraphTraversal.test.ts

@@ -1,4 +1,5 @@
 import {
+  resolveJavaScriptSemanticEvidence,
   semanticFixtureGraph,
   semanticGraphTestEvidence,
   unknownSemanticGraphTestEvidence,
@@ -20,7 +21,6 @@ import {
   createJavaScriptSemanticGraphRelation,
   createJavaScriptSemanticGraphUnknown,
   JavaScriptSemanticEvidenceContextRegistry,
-  resolveJavaScriptSemanticEvidence,
   type JavaScriptSemanticGraph,
 } from "./javascriptSemanticGraph.js";
 import { queryJavaScriptSemanticGraph } from "./javascriptSemanticQuery.js";