feat: add comprehensive marketplace scenario testing and update production readiness workflow

🛒 Marketplace Testing Enhancement:
• Add complete marketplace workflow test with 6-step scenario
• Test GPU bidding from aitbc server to marketplace
• Test bid confirmation and job creation by aitbc1
• Test Ollama AI task submission and execution monitoring
• Test blockchain payment processing and transaction mining
• Add balance verification for both parties after payment
• Add marketplace status

scripts/security_monitor.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+# AITBC Security Monitoring Script
+
+SECURITY_LOG="/var/log/aitbc/security.log"
+TIMESTAMP=$(date '+%Y-%m-%d %H:%M:%S')
+
+# Create log directory
+mkdir -p /var/log/aitbc
+
+# Function to log security events
+log_security() {
+    echo "[$TIMESTAMP] SECURITY: $1" >> $SECURITY_LOG
+}
+
+# Check for failed SSH attempts
+FAILED_SSH=$(grep "authentication failure" /var/log/auth.log | grep "$(date '+%b %d')" | wc -l)
+if [ "$FAILED_SSH" -gt 10 ]; then
+    log_security "High number of failed SSH attempts: $FAILED_SSH"
+fi
+
+# Check for unusual login activity
+UNUSUAL_LOGINS=$(last -n 20 | grep -v "reboot" | grep -v "shutdown" | wc -l)
+if [ "$UNUSUAL_LOGINS" -gt 0 ]; then
+    log_security "Recent login activity detected: $UNUSUAL_LOGINS logins"
+fi
+
+# Check service status
+SERVICES_DOWN=$(systemctl list-units --state=failed | grep aitbc | wc -l)
+if [ "$SERVICES_DOWN" -gt 0 ]; then
+    log_security "Failed AITBC services detected: $SERVICES_DOWN"
+fi
+
+# Check disk space
+DISK_USAGE=$(df / | awk 'NR==2 {print $5}' | sed 's/%//')
+if [ "$DISK_USAGE" -gt 80 ]; then
+    log_security "High disk usage: $DISK_USAGE%"
+fi
+
+echo "Security monitoring completed"