Fixed lint issues and missing documentation

internal/util/worker.go

@@ -154,12 +154,7 @@ func AwaitTask[T any](ctx context.Context, fn func() (T, error)) (T, error) {
 	}
 }
 
-// AwaitTask runs fn in its own goroutine and returns its result, or ctx.Err()
-// if ctx is cancelled first. This lets a Task stop waiting on a call that does
-// not respond promptly to cancellation.
-//
-// The result channel is buffered, so if ctx wins the race the goroutine can
-// still deliver its result and exit instead of blocking forever.
+// AwaitTaskE is AwaitTask for a function that returns only an error.
 func AwaitTaskE(ctx context.Context, fn func() error) error {
 	ch := make(chan error, 1)
 	go func() {