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/modelFiles.test.ts

@@ -2,7 +2,7 @@ import { describe, expect, test } from "bun:test";
 import { fetchModelFile, type ModelFileCacheStorage } from "../src/worker/modelFiles";
 import type { LoadProgressMessage } from "../src/worker/protocol";
 
-// Cache-API-backed weight download for the Parakeet path (D-WS7a, D-005).
+// Cache-API-backed weight download for the Parakeet path (D-051, D-005).
 
 const URL_A = "https://huggingface.co/org/model/resolve/rev/encoder.onnx";