Update to op-reth v2.6.0 and op-node v1.19.8

.env.example

@@ -2,34 +2,33 @@
 #                                ↓ REQUIRED ↓                                 #
 ###############################################################################
 
-# Current status: this template matches the repository's current op-geth-based
-# stack. Optimism says op-geth support ends on May 31, 2026 and Glamsterdam
-# will require op-reth. op-node is not being deprecated, but this template does
-# not yet include an op-reth execution path.
-# For long-lived nodes, treat this as the current stack only and plan an
-# op-reth migration window now.
-
-# Recommended first run for the current op-geth-based stack: ink-sepolia + full
+# Network to run: ink-mainnet or ink-sepolia.
 NETWORK_NAME=ink-sepolia
 
-# "full" starts from an empty datadir. This is the recommended first run.
-# "archive" restores from a per-network geth snapshot pointer during
-# bedrock-init and needs much more disk. If the snapshot lookup fails, switch
-# back to full.
+# "full" prunes old state and starts from the latest full op-reth snapshot.
+# "archive" keeps all history and starts from the latest archive snapshot.
+# Snapshots are downloaded from https://snapshots.optimism.io/ on first run.
 NODE_TYPE=full
 
-# For a quick Sepolia smoke test, these public endpoints worked during docs
-# validation:
-# - https://ethereum-sepolia-rpc.publicnode.com
-# - https://ethereum-sepolia-beacon-api.publicnode.com
-# For a long-running node, use a provider with higher rate limits.
+# After the snapshot is restored, op-node derives the chain from L1 starting at
+# the snapshot date (up to about a week back). Use an L1 provider that serves
+# receipts for old blocks (eth_getBlockReceipts) and has high rate limits.
+# Free public endpoints were tested against Ink Sepolia and are not enough:
+# - ethereum-sepolia-rpc.publicnode.com returns no receipts for older blocks
+# - sepolia.gateway.tenderly.co returns 429 Too Many Requests
+# - sepolia.drpc.org only allows batches of 3 (set OP_NODE_L1_RPC_MAX_BATCH_SIZE=3)
+#   and still catches up slower than the chain advances
 
 # L1 execution RPC endpoint for the matching Ethereum network
 OP_NODE__RPC_ENDPOINT=
 
 # L1 beacon API endpoint for the matching Ethereum network
 OP_NODE__L1_BEACON=
 
+# Optional: cap op-node's L1 batch request size for providers that limit
+# batches (default 20). Read directly by op-node; op-reth ignores it.
+# OP_NODE_L1_RPC_MAX_BATCH_SIZE=3
+
 # Use "basic" for generic providers. Other supported values are alchemy,
 # quicknode, and erigon.
 OP_NODE__RPC_TYPE=basic
@@ -47,26 +46,24 @@ HEALTHCHECK__REFERENCE_RPC_PROVIDER=https://rpc-gel-sepolia.inkonchain.com
 IMAGE_TAG__HEALTHCHECK=
 IMAGE_TAG__PROMETHEUS=
 IMAGE_TAG__GRAFANA=
-IMAGE_TAG__INFLUXDB=
 
 # Exposed host ports (must be unique). Set these only if the defaults clash.
 PORT__HEALTHCHECK_METRICS=
 PORT__PROMETHEUS=
 PORT__GRAFANA=
-PORT__INFLUXDB=
-PORT__OP_GETH_HTTP=
-PORT__OP_GETH_WS=
-PORT__OP_GETH_P2P=
+PORT__OP_RETH_HTTP=
+PORT__OP_RETH_WS=
+PORT__OP_RETH_P2P=
 # PORT__OP_NODE_P2P changes the published host port. The in-container
 # op-node listener still uses 9003.
 PORT__OP_NODE_P2P=
 PORT__OP_NODE_HTTP=
 
 # Advanced wrapper inputs shared by the shell entrypoints. Leave blank unless
 # you know you need them.
-# OVERRIDE_HOLOCENE appends --override.holocene=<value> in both wrappers.
+# OVERRIDE_HOLOCENE appends --override.holocene=<value> to op-node only.
 OVERRIDE_HOLOCENE=
 
-# EXTENDED_ARG is appended verbatim to both start commands. Only use flags that
-# are valid for the process you want to affect.
+# EXTENDED_ARG is appended verbatim to both start commands (op-node and
+# op-reth). Only use flags that are valid for the process you want to affect.
 EXTENDED_ARG=