fix: standardize exchange database path to use centralized data directory with environment variable

🔧 Database Path Standardization:
• Change DATABASE_URL environment variable to EXCHANGE_DATABASE_URL
• Update default database path from ./exchange.db to /var/lib/aitbc/data/exchange/exchange.db
• Apply consistent path resolution across all exchange database connections
• Update database.py, seed_market.py, and simple_exchange_api.py with new path
• Maintain backward compatibility through

scripts/workflow-openclaw/README.md

@@ -0,0 +1,287 @@
+# OpenClaw Multi-Node Blockchain Workflow Scripts
+
+This directory contains OpenClaw-enabled versions of the multi-node blockchain setup scripts that interact with OpenClaw agents instead of executing manual commands.
+
+## Overview
+
+The OpenClaw workflow scripts transform the manual multi-node blockchain deployment into an intelligent, automated, and coordinated agent-based system.
+
+## Scripts
+
+### 1. `01_preflight_setup_openclaw.sh`
+**Purpose**: Pre-flight setup with OpenClaw agent deployment
+**Agent**: CoordinatorAgent, GenesisAgent, FollowerAgent, WalletAgent
+**Tasks**:
+- Deploy OpenClaw agents
+- Stop existing services via agents
+- Update systemd configurations
+- Setup central configuration
+- Initialize agent communication channels
+
+### 2. `02_genesis_authority_setup_openclaw.sh`
+**Purpose**: Setup genesis authority node using OpenClaw agents
+**Agent**: GenesisAgent, WalletAgent, CoordinatorAgent
+**Tasks**:
+- Initialize GenesisAgent
+- Pull latest code
+- Update environment configuration
+- Create genesis block
+- Create genesis wallets
+- Start blockchain services
+- Verify genesis state
+
+### 3. `03_follower_node_setup_openclaw.sh`
+**Purpose**: Setup follower node using OpenClaw agents
+**Agent**: FollowerAgent, CoordinatorAgent
+**Tasks**:
+- Initialize FollowerAgent
+- Connect to aitbc1 node
+- Update follower configuration
+- Start follower services
+- Establish genesis connection
+- Monitor and verify sync
+
+### 4. `04_wallet_operations_openclaw.sh`
+**Purpose**: Execute wallet operations across nodes using OpenClaw agents
+**Agent**: WalletAgent, CoordinatorAgent
+**Tasks**:
+- Create cross-node wallets
+- Fund wallets from genesis
+- Execute cross-node transactions
+- Verify transaction confirmations
+- Test wallet switching
+
+### 5. `05_complete_workflow_openclaw.sh`
+**Purpose**: Orchestrate complete multi-node deployment using all OpenClaw agents
+**Agent**: CoordinatorAgent (orchestrates all other agents)
+**Tasks**:
+- Execute all workflow phases
+- Comprehensive verification
+- Performance testing
+- Network health checks
+- Generate final reports
+
+## OpenClaw Agent Architecture
+
+### Agent Types
+
+#### **CoordinatorAgent**
+- **Role**: Orchestrates all agent activities
+- **Capabilities**: Orchestration, monitoring, coordination
+- **Access**: Agent communication, task distribution
+
+#### **GenesisAgent**
+- **Role**: Manages genesis authority node (aitbc)
+- **Capabilities**: System admin, blockchain genesis, service management
+- **Access**: SSH, systemctl, file system
+
+#### **FollowerAgent**
+- **Role**: Manages follower node (aitbc1)
+- **Capabilities**: System admin, blockchain sync, service management
+- **Access**: SSH, systemctl, file system
+
+#### **WalletAgent**
+- **Role**: Manages wallet operations across nodes
+- **Capabilities**: Wallet management, transaction processing
+- **Access**: CLI commands, blockchain RPC
+
+## Usage
+
+### Quick Start
+```bash
+# Run complete workflow with OpenClaw agents
+./05_complete_workflow_openclaw.sh
+
+# Run individual phases
+./01_preflight_setup_openclaw.sh
+./02_genesis_authority_setup_openclaw.sh
+./03_follower_node_setup_openclaw.sh
+./04_wallet_operations_openclaw.sh
+```
+
+### OpenClaw Commands
+```bash
+# Deploy agents
+openclaw deploy --config /tmp/openclaw_agents.json
+
+# Monitor agents
+openclaw status --agent all
+
+# Execute specific agent tasks
+openclaw execute --agent GenesisAgent --task create_genesis_block
+openclaw execute --agent FollowerAgent --task sync_with_genesis
+openclaw execute --agent WalletAgent --task create_cross_node_wallets
+
+# Generate reports
+openclaw report --workflow multi_node --format json
+```
+
+## Key Features
+
+### ✅ **Intelligent Coordination**
+- Agents communicate via structured message protocol
+- Automatic task distribution and monitoring
+- Real-time status updates between agents
+- Coordinated error recovery
+
+### ✅ **Automated Execution**
+- No manual command execution required
+- Agents handle all operations automatically
+- Consistent execution across deployments
+- Reduced human error
+
+### ✅ **Error Handling and Recovery**
+- Built-in error detection and recovery
+- Automatic retry mechanisms
+- Service health monitoring
+- Comprehensive logging and reporting
+
+### ✅ **Scalability**
+- Easy to add more nodes and agents
+- Parallel execution where possible
+- Modular agent design
+- Dynamic task distribution
+
+## Agent Communication
+
+### Message Format
+```json
+{
+    "agent_id": "GenesisAgent",
+    "message_type": "status_update",
+    "target_agent": "CoordinatorAgent",
+    "payload": {
+        "status": "genesis_block_created",
+        "details": {
+            "block_height": 1,
+            "genesis_hash": "0x...",
+            "timestamp": "2026-03-30T12:40:00Z"
+        }
+    },
+    "timestamp": "2026-03-30T12:40:00Z"
+}
+```
+
+### Communication Flow
+1. **CoordinatorAgent** deploys all agents
+2. **GenesisAgent** sets up genesis authority
+3. **FollowerAgent** configures follower node
+4. **WalletAgent** manages wallet operations
+5. **CoordinatorAgent** monitors and verifies completion
+
+## Reports and Monitoring
+
+### Report Types
+- **Preflight Report**: `/tmp/openclaw_preflight_report.json`
+- **Genesis Report**: `/tmp/openclaw_genesis_report.json`
+- **Follower Report**: `/tmp/openclaw_follower_report.json`
+- **Wallet Report**: `/tmp/openclaw_wallet_report.json`
+- **Complete Report**: `/tmp/openclaw_complete_report.json`
+
+### Monitoring Commands
+```bash
+# Monitor agent status
+openclaw monitor --agent all
+
+# Monitor workflow progress
+openclaw monitor --workflow multi_node --real-time
+
+# Check agent health
+openclaw health --agent all
+```
+
+## Troubleshooting
+
+### Common Issues
+
+#### OpenClaw CLI Not Found
+```bash
+# Install OpenClaw
+pip install openclaw-agent
+
+# Or use mock mode (development)
+export OPENCLAW_MOCK_MODE=1
+```
+
+#### Agent Communication Failure
+```bash
+# Check agent status
+openclaw status --agent all
+
+# Restart communication
+openclaw restart --communication
+
+# Verify network connectivity
+ping -c 1 aitbc1
+```
+
+#### Service Start Failures
+```bash
+# Check service logs via agents
+openclaw execute --agent GenesisAgent --task show_service_logs
+
+# Manual service check
+systemctl status aitbc-blockchain-node.service
+```
+
+### Debug Mode
+```bash
+# Enable debug logging
+export OPENCLAW_DEBUG=1
+
+# Run with verbose output
+./05_complete_workflow_openclaw.sh --verbose
+
+# Check agent logs
+openclaw logs --agent all --tail 50
+```
+
+## Comparison with Manual Scripts
+
+| Feature | Manual Scripts | OpenClaw Scripts |
+|---------|----------------|-------------------|
+| Execution | Manual commands | Agent-automated |
+| Coordination | Human coordination | Agent coordination |
+| Error Handling | Manual intervention | Automatic recovery |
+| Monitoring | Manual checks | Real-time monitoring |
+| Scalability | Limited | Highly scalable |
+| Consistency | Variable | Consistent |
+| Reporting | Manual | Automated |
+
+## Prerequisites
+
+### System Requirements
+- OpenClaw CLI installed
+- SSH access to both nodes (aitbc, aitbc1)
+- Python virtual environment at `/opt/aitbc/venv`
+- AITBC CLI tool available
+- Network connectivity between nodes
+
+### OpenClaw Installation
+```bash
+# Install OpenClaw
+pip install openclaw-agent
+
+# Verify installation
+openclaw --version
+
+# Initialize OpenClaw
+openclaw init --workspace /opt/aitbc
+```
+
+## Next Steps
+
+1. **Run the complete workflow**: `./05_complete_workflow_openclaw.sh`
+2. **Monitor agent activity**: `openclaw monitor --agent all`
+3. **Verify deployment**: Check generated reports
+4. **Test operations**: Execute test transactions
+5. **Scale deployment**: Add more nodes and agents
+
+## Support
+
+For issues with OpenClaw scripts:
+1. Check agent status: `openclaw status --agent all`
+2. Review agent logs: `openclaw logs --agent all`
+3. Verify network connectivity
+4. Check OpenClaw configuration
+5. Run in debug mode for detailed logging