fix: ensure projects that go from having no commits to having commits have sessions migrated (#5105)

Co-authored-by: GitHub Action <action@github.com>

packages/opencode/src/util/queue.ts

@@ -17,3 +17,16 @@ export class AsyncQueue<T> implements AsyncIterable<T> {
     while (true) yield await this.next()
   }
 }
+
+export async function work<T>(concurrency: number, items: T[], fn: (item: T) => Promise<void>) {
+  const pending = [...items]
+  await Promise.all(
+    Array.from({ length: concurrency }, async () => {
+      while (true) {
+        const item = pending.pop()
+        if (item === undefined) return
+        await fn(item)
+      }
+    }),
+  )
+}