refactor: extract script snippets to reusable scripts

- Create modular scripts for multi-node blockchain setup
- Extract 6 core setup scripts from workflow documentation
- Add master orchestrator script for complete setup
- Replace inline code with script references in workflow
- Create comprehensive README for script documentation
- Copy scripts to aitbc for cross-node execution
- Improve maintainability and reusability of setup process

Scripts created:
- 01_preflight_setup.sh - System preparation
- 02_genesis_authority_setup.sh - Genesis node setup
- 03_follower_node_setup.sh - Follower node setup
- 04_create_wallet.sh - Wallet creation
- 05_send_transaction.sh - Transaction sending
- 06_final_verification.sh - System verification
- setup_multinode_blockchain.sh - Master orchestrator

This makes the workflow cleaner and scripts reusable
while maintaining all functionality.

scripts/workflow/03_follower_node_setup.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+# Follower Node Setup Script for AITBC Node (aitbc)
+# This script configures aitbc as a follower node
+
+set -e  # Exit on any error
+
+echo "=== AITBC Follower Node Setup (aitbc) ==="
+
+# Pull latest code
+echo "1. Pulling latest code..."
+cd /opt/aitbc
+git pull origin main
+
+# Install/update dependencies
+echo "2. Installing/updating dependencies..."
+/opt/aitbc/venv/bin/pip install -r requirements.txt
+
+# Check and create required directories if they don't exist
+echo "3. Creating required directories..."
+mkdir -p /var/lib/aitbc/data /var/lib/aitbc/keystore /etc/aitbc /var/log/aitbc
+
+# Verify directories exist
+ls -la /var/lib/aitbc/ || echo "Creating /var/lib/aitbc/ structure..."
+
+# Copy and adapt central .env for aitbc (follower node)
+cp /etc/aitbc/blockchain.env /etc/aitbc/blockchain.env.aitbc.backup 2>/dev/null || true
+
+# Update .env for aitbc follower node configuration
+echo "4. Updating environment configuration..."
+sed -i 's|proposer_id=.*|proposer_id=follower-node-aitbc|g' /etc/aitbc/.env
+sed -i 's|keystore_path=/opt/aitbc/apps/blockchain-node/keystore|keystore_path=/var/lib/aitbc/keystore|g' /etc/aitbc/.env
+sed -i 's|keystore_password_file=/opt/aitbc/apps/blockchain-node/keystore/.password|keystore_password_file=/var/lib/aitbc/keystore/.password|g' /etc/aitbc/.env
+sed -i 's|db_path=./data/ait-mainnet/chain.db|db_path=/var/lib/aitbc/data/ait-mainnet/chain.db|g' /etc/aitbc/.env
+sed -i 's|enable_block_production=true|enable_block_production=false|g' /etc/aitbc/.env
+sed -i 's|gossip_broadcast_url=redis://127.0.0.1:6379|gossip_broadcast_url=redis://10.1.223.40:6379|g' /etc/aitbc/.env
+sed -i 's|p2p_bind_port=8005|p2p_bind_port=7070|g' /etc/aitbc/.env
+sed -i 's|trusted_proposers=.*|trusted_proposers=ait1apmaugx6csz50q07m99z8k44llry0zpl0yurl23hygarcey8z85qy4zr96|g' /etc/aitbc/.env
+
+# Note: aitbc should sync genesis from aitbc1, not copy it
+# The follower node will receive the genesis block via blockchain sync
+# ⚠️  DO NOT: scp aitbc1:/var/lib/aitbc/data/ait-mainnet/genesis.json /var/lib/aitbc/data/ait-mainnet/
+# ✅ INSTEAD: Wait for automatic sync via blockchain protocol
+
+# Stop any existing services and clear old data
+echo "5. Stopping existing services and clearing old data..."
+systemctl stop aitbc-blockchain-* 2>/dev/null || true
+rm -f /var/lib/aitbc/data/ait-mainnet/chain.db*
+
+# Start follower services
+echo "6. Starting follower services..."
+systemctl daemon-reload
+systemctl enable aitbc-blockchain-node aitbc-blockchain-rpc
+systemctl start aitbc-blockchain-node aitbc-blockchain-rpc
+
+echo "✅ Follower node setup completed successfully!"
+echo "aitbc is now configured as a follower node."
+echo "Waiting for blockchain sync from aitbc1..."