* perf(ecstore): use direct std writes for local disk * fix(ecstore): avoid blocking disk writes in local disk path * fix(ecstore): use tokio async write in local disk path * chore(ecstore): remove unused AsyncWriteExt import * fix(ecstore): preserve write semantics and avoid bytes copy * fix(ecstore): optimize write_all_internal buffer paths * fix(ecstore): sync write path in local disk * fix(ecstore): align sync flag docs and avoid ref copy * chore(rust): format local write path --------- Co-authored-by: houseme <[email protected]>