Renumber spec 001 decision placeholders to D-040–D-051; record the Danish publication

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/longform-setting.test.ts

@@ -18,7 +18,7 @@ function memoryStorage(initial: Record<string, string> = {}) {
   };
 }
 
-describe("long-form setting persistence (D-WS3a)", () => {
+describe("long-form setting persistence (D-049)", () => {
   test("defaults when nothing is stored or storage is unavailable", () => {
     expect(loadLongFormChoice(memoryStorage())).toBe(LONG_FORM_DEFAULT);
     expect(loadLongFormChoice(null)).toBe(LONG_FORM_DEFAULT);