refactor(domain): consolidate canonical ordering and digest helpers (#624)

* refactor(domain): consolidate canonical ordering and digest helpers

Single owner for code-point ordering (domain/canonicalOrdering.ts)
and canonical JSON digests (domain/comparisonSemantics.ts). Delete
all local compareCodePoints/compareText/digestCanonical duplicates
and migrate every importer. No re-export shims.

* fix(ci): allow slower real browser startup

src/application/JavaScriptJsonModules.ts

@@ -1,3 +1,4 @@
+import { compareCodePoints } from "../domain/canonicalOrdering.js";
 import type { JavaScriptJsonModuleObservation } from "./JavaScriptArtifactAnalysisTypes.js";
 import type { JavaScriptArtifactFile } from "./JavaScriptArtifactFiles.js";
 
@@ -41,6 +42,3 @@ export const analyzeJavaScriptJsonModule = (
     limitation: null,
   };
 };
-
-const compareCodePoints = (left: string, right: string): number =>
-  left < right ? -1 : left > right ? 1 : 0;