Add MCP HTTP/SSE server and complete n8n integration

Major Changes:
- Implemented MCP HTTP/SSE transport server for n8n and web clients
- Created mcp_server/http_server.py with FastAPI for JSON-RPC 2.0 over HTTP
- Added health check endpoint (/health) for container monitoring
- Refactored mcp-server/ to mcp_server/ (Python module structure)
- Updated Dockerfile.mcp to run HTTP server with health checks

MCP Server Features:
- 7 memory tools exposed via MCP (add, search, get, update, delete)
- HTTP/SSE transport on port 8765 for n8n integration
- stdio transport for Claude Code integration
- JSON-RPC 2.0 protocol implementation
- CORS support for web clients

n8n Integration:
- Successfully tested with AI Agent workflows
- MCP Client Tool configuration documented
- Working webhook endpoint tested and verified
- System prompt optimized for automatic user_id usage

Documentation:
- Created comprehensive Mintlify documentation site
- Added docs/mcp/introduction.mdx - MCP server overview
- Added docs/mcp/installation.mdx - Installation guide
- Added docs/mcp/tools.mdx - Complete tool reference
- Added docs/examples/n8n.mdx - n8n integration guide
- Added docs/examples/claude-code.mdx - Claude Code setup
- Updated README.md with MCP HTTP server info
- Updated roadmap to mark Phase 1 as complete

Bug Fixes:
- Fixed synchronized delete operations across Supabase and Neo4j
- Updated memory_service.py with proper error handling
- Fixed Neo4j connection issues in delete operations

Configuration:
- Added MCP_HOST and MCP_PORT environment variables
- Updated .env.example with MCP server configuration
- Updated docker-compose.yml with MCP container health checks

Testing:
- Added test scripts for MCP HTTP endpoint verification
- Created test workflows in n8n
- Verified all 7 memory tools working correctly
- Tested synchronized operations across both stores

Version: 1.0.0
Status: Phase 1 Complete - Production Ready

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

test-mcp-tools.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+"""Quick test of MCP server tool definitions"""
+
+import asyncio
+import sys
+from mcp_server.main import T6Mem0Server
+
+async def test_tools():
+    """Test MCP server initialization and tool listing"""
+    try:
+        print("Initializing T6 Mem0 MCP Server...")
+        server = T6Mem0Server()
+        await server.initialize()
+
+        print("\n✓ Server initialized successfully")
+        print(f"✓ Memory instance: {type(server.memory).__name__}")
+        print(f"✓ Tools instance: {type(server.tools).__name__}")
+
+        # Get tool definitions
+        tools = server.tools.get_tool_definitions()
+        print(f"\n✓ Found {len(tools)} MCP tools:")
+
+        for tool in tools:
+            print(f"\n  • {tool.name}")
+            print(f"    {tool.description}")
+            required = tool.inputSchema.get('required', [])
+            if required:
+                print(f"    Required: {', '.join(required)}")
+
+        print("\n✅ MCP server test passed!")
+        return 0
+
+    except Exception as e:
+        print(f"\n❌ Test failed: {e}", file=sys.stderr)
+        import traceback
+        traceback.print_exc()
+        return 1
+
+if __name__ == "__main__":
+    exit_code = asyncio.run(test_tools())
+    sys.exit(exit_code)