refactor(javascript): consolidate semantic graph boundaries

Retire the unused graph serialization facade and use one typed query implementation after canonical request admission. Migrate tests to the owning schemas while preserving graph commitments, Unicode transport, provenance, uncertainty, traversal and reconstruction controls.

src/application/javascript/JavaScriptSemanticTraceService.ts

@@ -7,7 +7,7 @@ import {
   parseApplicationGraphEvidence,
 } from "./JavaScriptApplicationEvidenceGraph.js";
 import type { Evidence } from "../../domain/evidence.js";
-import { queryJavaScriptSemanticGraphValidated } from "../../domain/javascript/javascriptSemanticQuery.js";
+import { queryJavaScriptSemanticGraph } from "../../domain/javascript/javascriptSemanticQuery.js";
 import {
   traceJavaScriptSemanticsInputSchema,
   type JavaScriptSemanticTraceResult,
@@ -40,10 +40,7 @@ export const traceJavaScriptSemanticsEvidenceValidated = (
         },
       ]),
     );
-  const query = queryJavaScriptSemanticGraphValidated(
-    source.semanticGraph,
-    input.query,
-  );
+  const query = queryJavaScriptSemanticGraph(source.semanticGraph, input.query);
   const result: JavaScriptSemanticTraceResult = {
     ...query,
     source_evidence_id: source.evidence.evidence_id,