chore: update file permissions to executable across repository

- Change file mode from 644 to 755 for all project files
- Add chain_id parameter to get_balance RPC endpoint with default "ait-devnet"
- Rename Miner.extra_meta_data to extra_metadata for consistency

cli/aitbc_cli/commands/multi_region_load_balancer.py

@@ -0,0 +1,67 @@
+"""
+Multi-Region Load Balancer CLI Commands for AITBC
+Commands for managing multi-region load balancing
+"""
+
+import click
+import json
+import requests
+from datetime import datetime
+from typing import Dict, Any, List, Optional
+
+@click.group()
+def multi_region_load_balancer():
+    """Multi-region load balancer management commands"""
+    pass
+
+@multi_region_load_balancer.command()
+@click.option('--test-mode', is_flag=True, help='Run in test mode')
+def status(test_mode):
+    """Get load balancer status"""
+    try:
+        if test_mode:
+            click.echo("⚖️  Load Balancer Status (test mode)")
+            click.echo("📊 Total Rules: 5")
+            click.echo("✅ Active Rules: 5")
+            click.echo("🌍 Regions: 3")
+            click.echo("📈 Requests/sec: 1,250")
+            return
+        
+        # Get status from service
+        config = get_config()
+        response = requests.get(
+            f"{config.coordinator_url}/api/v1/dashboard",
+            headers={"Authorization": f"Bearer {config.api_key}"},
+            timeout=30
+        )
+        
+        if response.status_code == 200:
+            status = response.json()
+            dashboard = status['dashboard']
+            click.echo("⚖️  Load Balancer Status")
+            click.echo(f"📊 Total Rules: {dashboard.get('total_balancers', 0)}")
+            click.echo(f"✅ Active Rules: {dashboard.get('active_balancers', 0)}")
+            click.echo(f"🌍 Regions: {dashboard.get('regions', 0)}")
+            click.echo(f"📈 Requests/sec: {dashboard.get('requests_per_second', 0)}")
+        else:
+            click.echo(f"❌ Failed to get status: {response.text}", err=True)
+            
+    except Exception as e:
+        click.echo(f"❌ Error getting status: {str(e)}", err=True)
+
+# Helper function to get config
+def get_config():
+    """Get CLI configuration"""
+    try:
+        from .config import get_config
+        return get_config()
+    except ImportError:
+        # Fallback for testing
+        from types import SimpleNamespace
+        return SimpleNamespace(
+            coordinator_url="http://localhost:8019",
+            api_key="test-api-key"
+        )
+
+if __name__ == "__main__":
+    multi_region_load_balancer()