Move withTimeout JSDoc to directly above the function

The JSDoc was stranded above ENTITY_MAP after the HTML helpers were
inserted, causing tooling to misattribute it.

Author: jeremy

src/util.ts

@@ -1,11 +1,3 @@
-/**
- * Race a promise against a timeout. Returns the promise result or undefined on timeout.
- *
- * Note: this only stops *awaiting* the promise — it does not cancel the underlying
- * operation (e.g. a CLI child process). Node will keep the process alive until
- * the child exits. This is acceptable for shutdown: the OS will reap orphaned
- * CLI processes, and a stuck child is better than blocking shutdown indefinitely.
- */
 // ---------------------------------------------------------------------------
 // HTML helpers — shared by mentions/parse.ts and outbound/format.ts
 // ---------------------------------------------------------------------------
@@ -35,6 +27,14 @@ export function stripTags(text: string): string {
   return text;
 }
 
+/**
+ * Race a promise against a timeout. Returns the promise result or undefined on timeout.
+ *
+ * Note: this only stops *awaiting* the promise — it does not cancel the underlying
+ * operation (e.g. a CLI child process). Node will keep the process alive until
+ * the child exits. This is acceptable for shutdown: the OS will reap orphaned
+ * CLI processes, and a stuck child is better than blocking shutdown indefinitely.
+ */
 export async function withTimeout<T>(
   promise: Promise<T>,
   ms: number,