refactor(javascript): use shared canonical identity primitives

src/domain/javascript/javascriptSemanticGraphSerialization.ts

@@ -1,18 +1,9 @@
-import canonicalize from "canonicalize";
+import { canonicalJson } from "../comparisonSemantics.js";
 import {
   javaScriptSemanticGraphSchema,
   type JavaScriptSemanticGraph,
 } from "./javascriptSemanticGraph.js";
 
-const canonicalJson = (value: unknown): string => {
-  const encoded = canonicalize(value);
-  if (encoded === undefined)
-    throw new TypeError(
-      "JavaScript semantic graph could not canonicalize data",
-    );
-  return encoded;
-};
-
 /** Parse a stored semantic graph and reject stale IDs. */
 export const parseJavaScriptSemanticGraph = (
   input: unknown,
@@ -20,4 +11,7 @@ export const parseJavaScriptSemanticGraph = (
 
 /** Serialize a verified semantic graph as canonical JSON. */
 export const serializeJavaScriptSemanticGraph = (input: unknown): string =>
-  canonicalJson(parseJavaScriptSemanticGraph(input));
+  canonicalJson(
+    parseJavaScriptSemanticGraph(input),
+    "JavaScript semantic graph",
+  );