refactor(src): split oversized modules

src/agents/skills/serialize.ts

@@ -0,0 +1,12 @@
+const SKILLS_SYNC_QUEUE = new Map<string, Promise<unknown>>();
+
+export async function serializeByKey<T>(key: string, task: () => Promise<T>) {
+  const prev = SKILLS_SYNC_QUEUE.get(key) ?? Promise.resolve();
+  const next = prev.then(task, task);
+  SKILLS_SYNC_QUEUE.set(key, next);
+  try {
+    return await next;
+  } finally {
+    if (SKILLS_SYNC_QUEUE.get(key) === next) SKILLS_SYNC_QUEUE.delete(key);
+  }
+}