feat: implement AITBC mesh network deployment infrastructure

✅ Phase 0: Pre-implementation checklist completed
- Environment configurations (dev/staging/production)
- Directory structure setup (logs, backups, monitoring)
- Virtual environment with dependencies

✅ Master deployment script created
- Single command deployment with validation
- Progress tracking and rollback capability
- Health checks and deployment reporting

✅ Validation script created
- Module import validation
- Basic functionality testing
- Configuration and script verification

✅ Implementation fixes
- Fixed dataclass import in consensus keys
- Fixed async function syntax in tests
- Updated deployment script for virtual environment

🚀 Ready for deployment: ./scripts/deploy-mesh-network.sh dev

apps/blockchain-node/tests/network/test_discovery.py

@@ -0,0 +1,101 @@
+"""
+Tests for P2P Discovery Service
+"""
+
+import pytest
+import asyncio
+from unittest.mock import Mock, patch
+
+from aitbc_chain.network.discovery import P2PDiscovery, PeerNode, NodeStatus
+
+class TestP2PDiscovery:
+    """Test cases for P2P discovery service"""
+    
+    def setup_method(self):
+        """Setup test environment"""
+        self.discovery = P2PDiscovery("test-node", "127.0.0.1", 8000)
+        
+        # Add bootstrap nodes
+        self.discovery.add_bootstrap_node("127.0.0.1", 8001)
+        self.discovery.add_bootstrap_node("127.0.0.1", 8002)
+    
+    def test_generate_node_id(self):
+        """Test node ID generation"""
+        address = "127.0.0.1"
+        port = 8000
+        public_key = "test_public_key"
+        
+        node_id = self.discovery.generate_node_id(address, port, public_key)
+        
+        assert isinstance(node_id, str)
+        assert len(node_id) == 64  # SHA256 hex length
+        
+        # Test consistency
+        node_id2 = self.discovery.generate_node_id(address, port, public_key)
+        assert node_id == node_id2
+    
+    def test_add_bootstrap_node(self):
+        """Test adding bootstrap node"""
+        initial_count = len(self.discovery.bootstrap_nodes)
+        
+        self.discovery.add_bootstrap_node("127.0.0.1", 8003)
+        
+        assert len(self.discovery.bootstrap_nodes) == initial_count + 1
+        assert ("127.0.0.1", 8003) in self.discovery.bootstrap_nodes
+    
+    def test_generate_node_id_consistency(self):
+        """Test node ID generation consistency"""
+        address = "192.168.1.1"
+        port = 9000
+        public_key = "test_key"
+        
+        node_id1 = self.discovery.generate_node_id(address, port, public_key)
+        node_id2 = self.discovery.generate_node_id(address, port, public_key)
+        
+        assert node_id1 == node_id2
+        
+        # Different inputs should produce different IDs
+        node_id3 = self.discovery.generate_node_id("192.168.1.2", port, public_key)
+        assert node_id1 != node_id3
+    
+    def test_get_peer_count_empty(self):
+        """Test getting peer count with no peers"""
+        assert self.discovery.get_peer_count() == 0
+    
+    def test_get_peer_list_empty(self):
+        """Test getting peer list with no peers"""
+        assert self.discovery.get_peer_list() == []
+    
+    def test_update_peer_reputation_new_peer(self):
+        """Test updating reputation for non-existent peer"""
+        result = self.discovery.update_peer_reputation("nonexistent", 0.1)
+        assert result is False
+    
+    def test_update_peer_reputation_bounds(self):
+        """Test reputation bounds"""
+        # Add a test peer
+        peer = PeerNode(
+            node_id="test_peer",
+            address="127.0.0.1",
+            port=8001,
+            public_key="test_key",
+            last_seen=0,
+            status=NodeStatus.ONLINE,
+            capabilities=["test"],
+            reputation=0.5,
+            connection_count=0
+        )
+        self.discovery.peers["test_peer"] = peer
+        
+        # Try to increase beyond 1.0
+        result = self.discovery.update_peer_reputation("test_peer", 0.6)
+        assert result is True
+        assert self.discovery.peers["test_peer"].reputation == 1.0
+        
+        # Try to decrease below 0.0
+        result = self.discovery.update_peer_reputation("test_peer", -1.5)
+        assert result is True
+        assert self.discovery.peers["test_peer"].reputation == 0.0
+
+if __name__ == "__main__":
+    pytest.main([__file__])