refactor: clean up configuration and add production infrastructure

- Add .aitbc.yaml configuration file with test values
- Simplify .gitignore by removing merge conflicts and redundant entries
- Reorganize .gitignore sections for better clarity
- Set chain_id and proposer_id to empty strings in config.py (require explicit configuration)
- Add production Helm values configuration
- Add production nginx configuration
- Update environment variable handling in chain settings

scripts/deploy/cleanup-deployment.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+# Clean up failed deployment and prepare for redeployment
+
+echo "🧹 Cleaning up failed deployment..."
+echo "=================================="
+
+# Stop any running services
+echo "Stopping services..."
+ssh ns3-root "systemctl stop blockchain-node blockchain-rpc nginx 2>/dev/null || true"
+
+# Remove old directories
+echo "Removing old directories..."
+ssh ns3-root "rm -rf /opt/blockchain-node /opt/blockchain-node-src /opt/blockchain-explorer 2>/dev/null || true"
+
+# Remove systemd services
+echo "Removing systemd services..."
+ssh ns3-root "systemctl disable blockchain-node blockchain-rpc blockchain-explorer 2>/dev/null || true"
+ssh ns3-root "rm -f /etc/systemd/system/blockchain-node.service /etc/systemd/system/blockchain-rpc.service /etc/systemd/system/blockchain-explorer.service 2>/dev/null || true"
+ssh ns3-root "systemctl daemon-reload"
+
+echo "✅ Cleanup complete!"
+echo ""
+echo "You can now run: ./scripts/deploy/deploy-all-remote.sh"