Track will RN fail to persist block signature asynchronously #277
Description
On the rollup node, we persist block signatures here
in an asynchronous, fire-and-forget manner for performance reasons. However, this approach does not guarantee that the insert_signature operation will always succeed. If it fails occasionally, it could cause issues for L2geth when synchronizing blocks.
We are tracking this issue, and if such failures are observed, we may need to switch to a synchronous insertion strategy to ensure reliability.