fix: bootstrap.sh hardcodes BASE_SEPOLIA_LOCAL_FORK even on mainnet forks (#746)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

containers/bootstrap.sh

@@ -41,14 +41,21 @@ CONTRACT_ENV=$STATE_DIR/contracts.env
 
 # Derive NETWORK_NAME from FORK_URL if not explicitly set.
 # Callers may override by exporting NETWORK_NAME before starting the stack.
+# Chain ID 8453 = Base mainnet; anything else (including 84532 Base Sepolia) defaults to Sepolia fork.
 if [[ -z "${NETWORK_NAME:-}" ]]; then
   _fork_url="${FORK_URL:-}"
-  if [[ "$_fork_url" == *"mainnet"* ]]; then
-    NETWORK_NAME="BASE_MAINNET_LOCAL_FORK"
+  if [[ -n "$_fork_url" ]]; then
+    _chain_id=$(cast chain-id --rpc-url "$_fork_url" 2>/dev/null || echo "")
+    if [[ "$_chain_id" == "8453" ]]; then
+      NETWORK_NAME="BASE_MAINNET_LOCAL_FORK"
+    else
+      NETWORK_NAME="BASE_SEPOLIA_LOCAL_FORK"
+    fi
   else
     NETWORK_NAME="BASE_SEPOLIA_LOCAL_FORK"
   fi
 fi
+
 LOG_FILE=$SETUP_LOG
 ONCHAIN_DIR=$ROOT_DIR/onchain
 TXNBOT_FUND_VALUE=${TXNBOT_FUND_VALUE:-1ether}

services/ponder/ponder.config.ts

@@ -27,6 +27,17 @@ const networks: Record<string, NetworkConfig> = {
       startBlock: parseInt(process.env.START_BLOCK || '31425917'),
     },
   },
+  BASE_MAINNET_LOCAL_FORK: {
+    chainId: 31337,
+    rpc: process.env.PONDER_RPC_URL_BASE_MAINNET_LOCAL_FORK || 'http://127.0.0.1:8545',
+    disableCache: true,
+    contracts: {
+      kraiken: process.env.KRAIKEN_ADDRESS || '0x45caa5929f6ee038039984205bdecf968b954820',
+      stake: process.env.STAKE_ADDRESS || '0xed70707fab05d973ad41eae8d17e2bcd36192cfc',
+      liquidityManager: process.env.LM_ADDRESS || '0x0000000000000000000000000000000000000000',
+      startBlock: parseInt(process.env.START_BLOCK || '26038614'),
+    },
+  },
   BASE_SEPOLIA: {
     chainId: 84532,
     rpc: process.env.PONDER_RPC_URL_BASE_SEPOLIA || 'https://sepolia.base.org',