```

chore: enhance .gitignore and remove obsolete documentation files

- Reorganize .gitignore with categorized sections for better maintainability
- Add comprehensive ignore patterns for Python, Node.js, databases, logs, and build artifacts
- Add project-specific ignore rules for coordinator, explorer, and deployment files
- Remove outdated documentation: BITCOIN-WALLET-SETUP.md, LOCAL_ASSETS_SUMMARY.md, README-CONTAINER-DEPLOYMENT.md, README-DOMAIN-DEPLOYMENT.md
```

scripts/gpu/integrate_gpu_exchange.py

@@ -0,0 +1,146 @@
+#!/usr/bin/env python3
+"""
+Integrate GPU Miner with existing Trade Exchange
+"""
+
+import httpx
+import json
+import subprocess
+import time
+from datetime import datetime
+
+# Configuration
+EXCHANGE_URL = "http://localhost:3002"
+GPU_REGISTRY_URL = "http://localhost:8091"
+
+def update_exchange_with_gpu():
+    """Update the exchange frontend to show registered GPUs"""
+    
+    # Read the exchange HTML
+    with open('/home/oib/windsurf/aitbc/apps/trade-exchange/index.html', 'r') as f:
+        html_content = f.read()
+    
+    # Add GPU marketplace integration
+    gpu_integration = """
+    <script>
+    // GPU Integration
+    async function loadRealGPUOffers() {
+        try {
+            const response = await fetch('http://localhost:8091/miners/list');
+            const data = await response.json();
+            
+            if (data.gpus && data.gpus.length > 0) {
+                displayRealGPUOffers(data.gpus);
+            } else {
+                displayDemoOffers();
+            }
+        } catch (error) {
+            console.log('Using demo GPU offers');
+            displayDemoOffers();
+        }
+    }
+    
+    function displayRealGPUOffers(gpus) {
+        const container = document.getElementById('gpuList');
+        container.innerHTML = '';
+        
+        gpus.forEach(gpu => {
+            const gpuCard = `
+                <div class="bg-white rounded-lg shadow-lg p-6 card-hover">
+                    <div class="flex justify-between items-start mb-4">
+                        <h3 class="text-lg font-semibold">${gpu.capabilities.gpu.model}</h3>
+                        <span class="bg-green-100 text-green-800 px-2 py-1 rounded text-sm">Available</span>
+                    </div>
+                    <div class="space-y-2 text-sm text-gray-600 mb-4">
+                        <p><i data-lucide="monitor" class="w-4 h-4 inline mr-1"></i>Memory: ${gpu.capabilities.gpu.memory_gb} GB</p>
+                        <p><i data-lucide="zap" class="w-4 h-4 inline mr-1"></i>CUDA: ${gpu.capabilities.gpu.cuda_version}</p>
+                        <p><i data-lucide="cpu" class="w-4 h-4 inline mr-1"></i>Concurrency: ${gpu.concurrency}</p>
+                        <p><i data-lucide="map-pin" class="w-4 h-4 inline mr-1"></i>Region: ${gpu.region}</p>
+                    </div>
+                    <div class="flex justify-between items-center">
+                        <span class="text-2xl font-bold text-purple-600">50 AITBC/hr</span>
+                        <button onclick="purchaseGPU('${gpu.id}')" class="bg-purple-600 text-white px-4 py-2 rounded hover:bg-purple-700 transition">
+                            Purchase
+                        </button>
+                    </div>
+                </div>
+            `;
+            container.innerHTML += gpuCard;
+        });
+        
+        lucide.createIcons();
+    }
+    
+    // Override the loadGPUOffers function
+    const originalLoadGPUOffers = loadGPUOffers;
+    loadGPUOffers = loadRealGPUOffers;
+    </script>
+    """
+    
+    # Insert before closing body tag
+    if '</body>' in html_content:
+        html_content = html_content.replace('</body>', gpu_integration + '</body>')
+        
+        # Write back to file
+        with open('/home/oib/windsurf/aitbc/apps/trade-exchange/index.html', 'w') as f:
+            f.write(html_content)
+        
+        print("✅ Updated exchange with GPU integration!")
+    else:
+        print("❌ Could not find </body> tag in exchange HTML")
+
+def create_gpu_api_endpoint():
+    """Create an API endpoint in the exchange to serve GPU data"""
+    
+    api_code = """
+@app.get("/api/gpu/offers")
+async def get_gpu_offers():
+    \"\"\"Get available GPU offers\"\"\"
+    try:
+        # Fetch from GPU registry
+        response = httpx.get("http://localhost:8091/miners/list")
+        if response.status_code == 200:
+            data = response.json()
+            return {"offers": data.get("gpus", [])}
+    except:
+        pass
+    
+    # Return demo data if registry not available
+    return {
+        "offers": [{
+            "id": "demo-gpu-1",
+            "model": "NVIDIA RTX 4060 Ti",
+            "memory_gb": 16,
+            "price_per_hour": 50,
+            "available": True
+        }]
+    }
+"""
+    
+    print("\n📝 To add GPU API endpoint to exchange, add this code to simple_exchange_api.py:")
+    print(api_code)
+
+def main():
+    print("🔗 Integrating GPU Miner with Trade Exchange...")
+    
+    # Update exchange frontend
+    update_exchange_with_gpu()
+    
+    # Show API integration code
+    create_gpu_api_endpoint()
+    
+    print("\n📊 Integration Summary:")
+    print("1. ✅ Exchange frontend updated to show real GPUs")
+    print("2. 📝 See above for API endpoint code")
+    print("3. 🌐 Access the exchange at: http://localhost:3002")
+    print("4. 🎯 GPU Registry available at: http://localhost:8091/miners/list")
+    
+    print("\n🔄 To see the integrated GPU marketplace:")
+    print("1. Restart the trade exchange if needed:")
+    print("   cd /home/oib/windsurf/aitbc/apps/trade-exchange")
+    print("   python simple_exchange_api.py")
+    print("2. Open http://localhost:3002 in browser")
+    print("3. Click 'Browse GPU Marketplace'")
+
+if __name__ == "__main__":
+    main()