feat: add BatchProcessor to replace BlockTagService

Introduce a new BatchProcessor that sequentially walks every committed
batch, verifies via BatchVerifier, and updates safe/finalized block tags.
This replaces BlockTagService which skipped intermediate batches.

Author: corey

node/batchprocessor/config.go

@@ -0,0 +1,49 @@
+package batchprocessor
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/morph-l2/go-ethereum/common"
+	"github.com/urfave/cli"
+
+	node "morph-l2/node/core"
+	"morph-l2/node/flags"
+)
+
+const (
+	DefaultPollInterval      = 12 * time.Second
+	DefaultSafeConfirmations = 10
+)
+
+type Config struct {
+	L1Addr            string
+	RollupAddress     common.Address
+	SafeConfirmations uint64
+	PollInterval      time.Duration
+}
+
+func DefaultConfig() *Config {
+	return &Config{
+		SafeConfirmations: DefaultSafeConfirmations,
+		PollInterval:      DefaultPollInterval,
+	}
+}
+
+func (c *Config) SetCliContext(ctx *cli.Context) error {
+	c.L1Addr = ctx.GlobalString(flags.L1NodeAddr.Name)
+
+	if ctx.GlobalBool(flags.MainnetFlag.Name) {
+		c.RollupAddress = node.MainnetRollupContractAddress
+	} else if ctx.GlobalIsSet(flags.RollupContractAddress.Name) {
+		c.RollupAddress = common.HexToAddress(ctx.GlobalString(flags.RollupContractAddress.Name))
+	} else {
+		return fmt.Errorf("rollup contract address is required: either specify --%s or use --%s for mainnet default",
+			flags.RollupContractAddress.Name, flags.MainnetFlag.Name)
+	}
+
+	if ctx.GlobalIsSet(flags.BlockTagSafeConfirmations.Name) {
+		c.SafeConfirmations = ctx.GlobalUint64(flags.BlockTagSafeConfirmations.Name)
+	}
+	return nil
+}