```

chore: enhance .gitignore and remove obsolete documentation files

- Reorganize .gitignore with categorized sections for better maintainability
- Add comprehensive ignore patterns for Python, Node.js, databases, logs, and build artifacts
- Add project-specific ignore rules for coordinator, explorer, and deployment files
- Remove outdated documentation: BITCOIN-WALLET-SETUP.md, LOCAL_ASSETS_SUMMARY.md, README-CONTAINER-DEPLOYMENT.md, README-DOMAIN-DEPLOYMENT.md
```

scripts/setup_systemd.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+# Setup AITBC Systemd Services
+echo "🔧 Setting up AITBC systemd services..."
+
+# Copy service files
+echo "📁 Copying service files..."
+sudo cp systemd/aitbc-*.service /etc/systemd/system/
+
+# Reload systemd daemon
+echo "🔄 Reloading systemd daemon..."
+sudo systemctl daemon-reload
+
+# Stop existing processes
+echo "⏹️ Stopping existing processes..."
+pkill -f "coordinator-api" || true
+pkill -f "simple_exchange_api.py" || true
+pkill -f "server.py --port 3002" || true
+pkill -f "wallet_daemon" || true
+pkill -f "node.main" || true
+
+# Enable services
+echo "✅ Enabling services..."
+sudo systemctl enable aitbc-coordinator-api.service
+sudo systemctl enable aitbc-exchange-api.service
+sudo systemctl enable aitbc-exchange-frontend.service
+sudo systemctl enable aitbc-wallet.service
+sudo systemctl enable aitbc-node.service
+
+# Start services
+echo "🚀 Starting services..."
+sudo systemctl start aitbc-coordinator-api.service
+sudo systemctl start aitbc-exchange-api.service
+sudo systemctl start aitbc-exchange-frontend.service
+sudo systemctl start aitbc-wallet.service
+sudo systemctl start aitbc-node.service
+
+# Check status
+echo ""
+echo "📊 Service Status:"
+for service in aitbc-coordinator-api aitbc-exchange-api aitbc-exchange-frontend aitbc-wallet aitbc-node; do
+    status=$(sudo systemctl is-active $service)
+    echo "  $service: $status"
+done
+
+echo ""
+echo "📝 To view logs: sudo journalctl -u <service-name> -f"
+echo "📝 To restart: sudo systemctl restart <service-name>"
+echo "📝 To stop: sudo systemctl stop <service-name>"