Move blockchain app READMEs to centralized documentation

- Relocate blockchain-event-bridge README content to docs/apps/blockchain/blockchain-event-bridge.md
- Relocate blockchain-explorer README content to docs/apps/blockchain/blockchain-explorer.md
- Replace app READMEs with redirect notices pointing to new documentation location
- Consolidate documentation in central docs/ directory for better organization

docs/apps/infrastructure/global-infrastructure.md

@@ -0,0 +1,206 @@
+# Global Infrastructure
+
+## Status
+✅ Operational
+
+## Overview
+Global infrastructure management service for deploying, monitoring, and managing AITBC infrastructure across multiple regions and cloud providers.
+
+## Architecture
+
+### Core Components
+- **Infrastructure Manager**: Manages infrastructure resources
+- **Deployment Service**: Handles deployments across regions
+- **Resource Scheduler**: Schedules resources optimally
+- **Configuration Manager**: Manages infrastructure configuration
+- **Cost Optimizer**: Optimizes infrastructure costs
+
+## Quick Start (End Users)
+
+### Prerequisites
+- Python 3.13+
+- Cloud provider credentials (AWS, GCP, Azure)
+- Terraform or CloudFormation templates
+
+### Installation
+```bash
+cd /opt/aitbc/apps/global-infrastructure
+.venv/bin/pip install -r requirements.txt
+```
+
+### Configuration
+Set environment variables in `.env`:
+```bash
+CLOUD_PROVIDER=aws
+AWS_ACCESS_KEY_ID=your-access-key
+AWS_SECRET_ACCESS_KEY=your-secret-key
+AWS_REGION=us-east-1
+TERRAFORM_PATH=/path/to/terraform
+```
+
+### Running the Service
+```bash
+.venv/bin/python main.py
+```
+
+## Developer Guide
+
+### Development Setup
+1. Clone the repository
+2. Create virtual environment: `python -m venv .venv`
+3. Install dependencies: `pip install -r requirements.txt`
+4. Configure cloud provider credentials
+5. Run tests: `pytest tests/`
+
+### Project Structure
+```
+global-infrastructure/
+├── src/
+│   ├── infrastructure_manager/ # Infrastructure management
+│   ├── deployment_service/      # Deployment orchestration
+│   ├── resource_scheduler/      # Resource scheduling
+│   ├── config_manager/          # Configuration management
+│   └── cost_optimizer/          # Cost optimization
+├── terraform/                   # Terraform templates
+├── tests/                       # Test suite
+└── pyproject.toml               # Project configuration
+```
+
+### Testing
+```bash
+# Run all tests
+pytest tests/
+
+# Run deployment tests
+pytest tests/test_deployment.py
+
+# Run cost optimizer tests
+pytest tests/test_cost.py
+```
+
+## API Reference
+
+### Infrastructure Management
+
+#### Get Infrastructure Status
+```http
+GET /api/v1/infrastructure/status
+```
+
+#### Provision Resource
+```http
+POST /api/v1/infrastructure/provision
+Content-Type: application/json
+
+{
+  "resource_type": "server|database|storage",
+  "region": "us-east-1",
+  "specifications": {}
+}
+```
+
+#### Decommission Resource
+```http
+DELETE /api/v1/infrastructure/resources/{resource_id}
+```
+
+### Deployment
+
+#### Deploy Service
+```http
+POST /api/v1/infrastructure/deploy
+Content-Type: application/json
+
+{
+  "service_name": "blockchain-node",
+  "region": "us-east-1",
+  "configuration": {}
+}
+```
+
+#### Get Deployment Status
+```http
+GET /api/v1/infrastructure/deployments/{deployment_id}
+```
+
+### Resource Scheduling
+
+#### Get Resource Utilization
+```http
+GET /api/v1/infrastructure/resources/utilization
+```
+
+#### Optimize Resources
+```http
+POST /api/v1/infrastructure/resources/optimize
+Content-Type: application/json
+
+{
+  "optimization_type": "cost|performance",
+  "constraints": {}
+}
+```
+
+### Configuration
+
+#### Get Configuration
+```http
+GET /api/v1/infrastructure/config/{region}
+```
+
+#### Update Configuration
+```http
+PUT /api/v1/infrastructure/config/{region}
+Content-Type: application/json
+
+{
+  "parameters": {}
+}
+```
+
+### Cost Management
+
+#### Get Cost Report
+```http
+GET /api/v1/infrastructure/costs?period=month
+```
+
+#### Get Cost Optimization Recommendations
+```http
+GET /api/v1/infrastructure/costs/recommendations
+```
+
+## Configuration
+
+### Environment Variables
+- `CLOUD_PROVIDER`: Cloud provider (aws, gcp, azure)
+- `AWS_ACCESS_KEY_ID`: AWS access key
+- `AWS_SECRET_ACCESS_KEY`: AWS secret key
+- `AWS_REGION`: Default AWS region
+- `TERRAFORM_PATH`: Path to Terraform templates
+- `DEPLOYMENT_TIMEOUT`: Deployment timeout in seconds
+
+### Infrastructure Parameters
+- **Regions**: Supported cloud regions
+- **Instance Types**: Available instance types
+- **Storage Classes**: Storage class configurations
+- **Network Configurations**: VPC and network settings
+
+## Troubleshooting
+
+**Deployment failed**: Check cloud provider credentials and configuration.
+
+**Resource not provisioned**: Verify resource specifications and quotas.
+
+**Cost optimization not working**: Review cost optimizer configuration and constraints.
+
+**Configuration sync failed**: Check network connectivity and configuration validity.
+
+## Security Notes
+
+- Rotate cloud provider credentials regularly
+- Use IAM roles instead of access keys when possible
+- Enable encryption for all storage resources
+- Implement network security groups and firewalls
+- Monitor for unauthorized resource changes
+- Regularly audit infrastructure configuration