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/deploy-blockchain.sh

@@ -0,0 +1,139 @@
+#!/bin/bash
+
+# Deploy blockchain node and explorer to incus container
+
+set -e
+
+echo "🚀 Deploying Blockchain Node and Explorer"
+echo "========================================"
+
+# Colors
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+print_status() {
+    echo -e "${GREEN}[INFO]${NC} $1"
+}
+
+print_warning() {
+    echo -e "${YELLOW}[WARN]${NC} $1"
+}
+
+# Copy blockchain node to container
+print_status "Copying blockchain node to container..."
+ssh ns3-root "rm -rf /opt/blockchain-node 2>/dev/null || true"
+scp -r apps/blockchain-node ns3-root:/opt/
+
+# Setup blockchain node in container
+print_status "Setting up blockchain node..."
+ssh ns3-root << 'EOF'
+cd /opt/blockchain-node
+
+# Create configuration
+cat > .env << EOL
+CHAIN_ID=ait-devnet
+DB_PATH=./data/chain.db
+RPC_BIND_HOST=0.0.0.0
+RPC_BIND_PORT=8082
+P2P_BIND_HOST=0.0.0.0
+P2P_BIND_PORT=7070
+PROPOSER_KEY=proposer_key_$(date +%s)
+MINT_PER_UNIT=1000
+COORDINATOR_RATIO=0.05
+GOSSIP_BACKEND=memory
+EOL
+
+# Create data directory
+mkdir -p data/devnet
+
+# Setup Python environment
+python3 -m venv .venv
+source .venv/bin/activate
+pip install --upgrade pip
+pip install -e .
+
+# Generate genesis
+export PYTHONPATH="${PWD}/src:${PWD}/scripts:${PYTHONPATH:-}"
+python scripts/make_genesis.py --output data/devnet/genesis.json --force
+EOF
+
+# Create systemd service for blockchain node
+print_status "Creating systemd service for blockchain node..."
+ssh ns3-root << 'EOF'
+cat > /etc/systemd/system/blockchain-node.service << EOL
+[Unit]
+Description=AITBC Blockchain Node
+After=network.target
+
+[Service]
+Type=exec
+User=root
+WorkingDirectory=/opt/blockchain-node
+Environment=PATH=/opt/blockchain-node/.venv/bin:/usr/local/bin:/usr/bin:/bin
+Environment=PYTHONPATH=/opt/blockchain-node/src:/opt/blockchain-node/scripts
+ExecStart=/opt/blockchain-node/.venv/bin/python3 -m aitbc_chain.main
+Restart=always
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target
+EOL
+
+cat > /etc/systemd/system/blockchain-rpc.service << EOL
+[Unit]
+Description=AITBC Blockchain RPC API
+After=blockchain-node.service
+
+[Service]
+Type=exec
+User=root
+WorkingDirectory=/opt/blockchain-node
+Environment=PATH=/opt/blockchain-node/.venv/bin:/usr/local/bin:/usr/bin:/bin
+Environment=PYTHONPATH=/opt/blockchain-node/src:/opt/blockchain-node/scripts
+ExecStart=/opt/blockchain-node/.venv/bin/python3 -m uvicorn aitbc_chain.app:app --host 0.0.0.0 --port 8082
+Restart=always
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target
+EOL
+
+systemctl daemon-reload
+systemctl enable blockchain-node blockchain-rpc
+EOF
+
+# Start blockchain node
+print_status "Starting blockchain node..."
+ssh ns3-root "systemctl start blockchain-node blockchain-rpc"
+
+# Wait for node to start
+print_status "Waiting for blockchain node to start..."
+sleep 5
+
+# Check status
+print_status "Checking blockchain node status..."
+ssh ns3-root "systemctl status blockchain-node blockchain-rpc --no-pager | grep -E 'Active:|Main PID:'"
+
+# Setup port forwarding
+print_status "Setting up port forwarding..."
+ssh ns3-root << 'EOF'
+# Clear existing rules
+iptables -t nat -F PREROUTING 2>/dev/null || true
+iptables -t nat -F POSTROUTING 2>/dev/null || true
+
+# Add port forwarding for blockchain RPC
+iptables -t nat -A PREROUTING -p tcp --dport 8082 -j DNAT --to-destination 192.168.100.10:8082
+iptables -t nat -A POSTROUTING -p tcp -d 192.168.100.10 --dport 8082 -j MASQUERADE
+
+# Save rules
+mkdir -p /etc/iptables
+iptables-save > /etc/iptables/rules.v4
+EOF
+
+print_success "✅ Blockchain node deployed!"
+echo ""
+echo "Node RPC: http://192.168.100.10:8082"
+echo "External RPC: http://aitbc.keisanki.net:8082"
+echo ""
+echo "Next: Deploying blockchain explorer..."