fix(multicall): resolve critical multicall parsing corruption issues

- Added comprehensive bounds checking to prevent buffer overruns in multicall parsing
- Implemented graduated validation system (Strict/Moderate/Permissive) to reduce false positives
- Added LRU caching system for address validation with 10-minute TTL
- Enhanced ABI decoder with missing Universal Router and Arbitrum-specific DEX signatures
- Fixed duplicate function declarations and import conflicts across multiple files
- Added error recovery mechanisms with multiple fallback strategies
- Updated tests to handle new validation behavior for suspicious addresses
- Fixed parser test expectations for improved validation system
- Applied gofmt formatting fixes to ensure code style compliance
- Fixed mutex copying issues in monitoring package by introducing MetricsSnapshot
- Resolved critical security vulnerabilities in heuristic address extraction
- Progress: Updated TODO audit from 10% to 35% complete

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

scripts/run.sh

@@ -8,6 +8,12 @@ echo "Running MEV bot..."
 ./scripts/build.sh
 
 if [ $? -eq 0 ]; then
+    # Normalize GO_ENV when passed as .env.* style
+    if [[ -n "$GO_ENV" && "$GO_ENV" == .env.* ]]; then
+        GO_ENV="${GO_ENV#.env.}"
+        export GO_ENV
+    fi
+
     # Load environment variables from .env.production if it exists
     if [ -f ".env.production" ]; then
         echo "🔧 Loading production environment variables from .env.production..."
@@ -34,10 +40,21 @@ if [ $? -eq 0 ]; then
     fi
     
     # Set required environment variables with production values
-    export ARBITRUM_RPC_ENDPOINT="${ARBITRUM_RPC_ENDPOINT:-wss://arbitrum-mainnet.core.chainstack.com/f69d14406bc00700da9b936504e1a870}"
+    export ARBITRUM_RPC_ENDPOINT="${ARBITRUM_RPC_ENDPOINT:-wss://arbitrum-mainnet.core.chainstack.com/53c30e7a941160679fdcc396c894fc57}"
     export ARBITRUM_WS_ENDPOINT="${ARBITRUM_WS_ENDPOINT:-$ARBITRUM_RPC_ENDPOINT}"
     export METRICS_ENABLED="${METRICS_ENABLED:-true}"
     export METRICS_PORT="${METRICS_PORT:-9090}"
+
+    export MEV_BOT_KEYSTORE_PATH="${MEV_BOT_KEYSTORE_PATH:-keystore/production}"
+    export MEV_BOT_AUDIT_LOG="${MEV_BOT_AUDIT_LOG:-logs/production_audit.log}"
+    export MEV_BOT_BACKUP_PATH="${MEV_BOT_BACKUP_PATH:-backups/production}"
+
+    mkdir -p "$MEV_BOT_KEYSTORE_PATH"
+    mkdir -p "$MEV_BOT_BACKUP_PATH"
+    mkdir -p "$(dirname "$MEV_BOT_AUDIT_LOG")"
+
+    echo "Keystore path: $MEV_BOT_KEYSTORE_PATH"
+    env | grep MEV_BOT_KEYSTORE_PATH
     
     echo ""
     echo "🚀 PRODUCTION MEV BOT STARTUP"
@@ -61,4 +78,4 @@ if [ $? -eq 0 ]; then
 else
     echo "Failed to build the application!"
     exit 1
-fi
+fi