core/types: add EffectiveGasPrice in Receipt (#26713)

This change adds a struct field EffectiveGasPrice in types.Receipt. The field is present
in RPC responses, but not in the Go struct, and thus can't easily be accessed via ethclient.

Co-authored-by: PulsarAI <dev@pulsar-systems.fi>

core/rawdb/accessors_chain.go

@@ -636,7 +636,14 @@ func ReadReceipts(db ethdb.Reader, hash common.Hash, number uint64, config *para
 		log.Error("Missing body but have receipt", "hash", hash, "number", number)
 		return nil
 	}
-	if err := receipts.DeriveFields(config, hash, number, body.Transactions); err != nil {
+	header := ReadHeader(db, hash, number)
+	var baseFee *big.Int
+	if header == nil {
+		baseFee = big.NewInt(0)
+	} else {
+		baseFee = header.BaseFee
+	}
+	if err := receipts.DeriveFields(config, hash, number, baseFee, body.Transactions); err != nil {
 		log.Error("Failed to derive block receipts fields", "hash", hash, "number", number, "err", err)
 		return nil
 	}