feat(prod): complete production deployment with Podman containerization

- Migrate from Docker to Podman for enhanced security (rootless containers)
- Add production-ready Dockerfile with multi-stage builds
- Configure production environment with Arbitrum mainnet RPC endpoints
- Add comprehensive test coverage for core modules (exchanges, execution, profitability)
- Implement production audit and deployment documentation
- Update deployment scripts for production environment
- Add container runtime and health monitoring scripts
- Document RPC limitations and remediation strategies
- Implement token metadata caching and pool validation

This commit prepares the MEV bot for production deployment on Arbitrum
with full containerization, security hardening, and operational tooling.

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>

scripts/apply-critical-fixes.sh

@@ -1,9 +1,9 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Critical Fixes Application Script
 # Date: 2025-10-30
 # Purpose: Apply all critical fixes identified in log analysis
 
-set -e  # Exit on error
+set -euo pipefail  # Exit on error, undefined vars, pipe failures
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
@@ -42,7 +42,7 @@ create_backup() {
     mkdir -p "$backup_dir"
 
     if [ -f "$file" ]; then
-        cp "$file" "$backup_dir/$(basename $file).backup"
+        cp "$file" "$backup_dir/$(basename "$file").backup"
         log_info "Backed up: $file -> $backup_dir"
     fi
 }