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

tests/support/javascriptSemanticGraphFixture.ts

@@ -5,6 +5,7 @@ import {
   JAVASCRIPT_SEMANTIC_RELATION_FAMILIES,
   type JavaScriptSemanticGraphInput,
   type JavaScriptSemanticGraphNode,
+  type JavaScriptSemanticEvidenceReference,
 } from "../../src/domain/javascript/javascriptSemanticGraphSchemas.js";
 import {
   createJavaScriptSemanticFingerprint,
@@ -250,3 +251,17 @@ export const semanticFixtureGraph = (
   withUnknown = false,
 ): JavaScriptSemanticGraph =>
   createJavaScriptSemanticGraph(semanticFixtureInput(withUnknown));
+
+/** Resolve one fact's compact provenance without changing its stored shape. */
+export const resolveJavaScriptSemanticEvidence = (
+  graph: Pick<JavaScriptSemanticGraph, "evidence_contexts">,
+  reference: JavaScriptSemanticEvidenceReference,
+): ApplicationGraphEvidence => {
+  const context = graph.evidence_contexts.find(
+    ({ context_id }) => context_id === reference.context_id,
+  );
+  if (context === undefined)
+    throw new TypeError("Semantic evidence reference names an absent context");
+  const { context_id: _contextId, ...evidenceContext } = context;
+  return { ...evidenceContext, location: reference.location };
+};