fix: make A2UI hash ordering deterministic

test/scripts/bundle-a2ui.test.ts

@@ -1,6 +1,7 @@
 import path from "node:path";
 import { describe, expect, it } from "vitest";
 import {
+  compareNormalizedPaths,
   getLocalRolldownCliCandidates,
   isBundleHashInputPath,
 } from "../../scripts/bundle-a2ui.mjs";
@@ -36,4 +37,15 @@ describe("scripts/bundle-a2ui.mjs", () => {
       path.join(repoRoot, "node_modules", "rolldown", "bin", "cli.mjs"),
     );
   });
+
+  it("sorts hash inputs without locale-dependent collation", () => {
+    const paths = ["repo/Z.ts", "repo/a.ts", "repo/ä.ts", "repo/A.ts"];
+
+    expect([...paths].toSorted(compareNormalizedPaths)).toEqual([
+      "repo/A.ts",
+      "repo/Z.ts",
+      "repo/a.ts",
+      "repo/ä.ts",
+    ]);
+  });
 });