fix(taiko-client): report actual fork label in preconf block log (#21798)

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

Author: davidtaikocha

packages/taiko-client/driver/chain_syncer/event/blocks_inserter/inserter.go

@@ -303,7 +303,7 @@ func (i *Shasta) InsertPreconfBlocksFromEnvelopes(
 			"⏰ New preconfirmation L2 block inserted",
 			"blockID", header.Number,
 			"hash", header.Hash(),
-			"fork", "Shasta",
+			"fork", rpc.ForkLabel(i.rpc.L2.ChainID, header.Time),
 			"coinbase", header.Coinbase.Hex(),
 			"timestamp", header.Time,
 			"baseFee", utils.WeiToGWei(header.BaseFee),