refactor: restructure test suite

- Remove tests/production/ directory (JWT auth, production monitoring, etc.)
- Remove tests/staking/ directory
- Remove tests/services/test_staking_service.py
- Remove tests/phase1/ directory
- Remove tests/load_test.py
- Add tests/verification/ directory with 20+ new test files
- Add tests/load/locustfile.py for load testing
- Add tests/security/test_confidential_transactions.py
- Add tests/integration/test_working_integration.py
- Update docs/ for minimum Python version and paths

tests/verification/verify_gpu_deployment.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+# Simple verification of GPU deployment in container
+
+echo "🔍 Checking GPU deployment in AITBC container..."
+
+# Check if services exist
+echo "1. Checking if services are installed..."
+if ssh aitbc 'systemctl list-unit-files | grep -E "aitbc-gpu" 2>/dev/null'; then
+    echo "✅ GPU services found"
+else
+    echo "❌ GPU services not found - need to deploy first"
+    exit 1
+fi
+
+# Check service status
+echo -e "\n2. Checking service status..."
+ssh aitbc 'sudo systemctl status aitbc-gpu-registry.service --no-pager --lines=3'
+ssh aitbc 'sudo systemctl status aitbc-gpu-miner.service --no-pager --lines=3'
+
+# Check if ports are listening
+echo -e "\n3. Checking if GPU registry is listening..."
+if ssh aitbc 'ss -tlnp | grep :8091 2>/dev/null'; then
+    echo "✅ GPU registry listening on port 8091"
+else
+    echo "❌ GPU registry not listening"
+fi
+
+# Check GPU registration
+echo -e "\n4. Checking GPU registration from container..."
+ssh aitbc 'curl -s http://127.0.0.1:8091/miners/list 2>/dev/null | python3 -c "import sys,json; data=json.load(sys.stdin); print(f\"Found {len(data.get(\"gpus\", []))} GPU(s)\")" 2>/dev/null || echo "Failed to get GPU list"'
+
+echo -e "\n5. Checking from host (10.1.223.93)..."
+curl -s http://10.1.223.93:8091/miners/list 2>/dev/null | python3 -c "import sys,json; data=json.load(sys.stdin); print(f\"✅ From host: Found {len(data.get(\"gpus\", []))} GPU(s)\")" 2>/dev/null || echo "❌ Cannot access from host"
+
+echo -e "\n✅ Verification complete!"