Apply Composer changes: comprehensive API updates, migrations, middleware, and infrastructure improvements

- Add comprehensive database migrations (001-024) for schema evolution
- Enhance API schema with expanded type definitions and resolvers
- Add new middleware: audit logging, rate limiting, MFA enforcement, security, tenant auth
- Implement new services: AI optimization, billing, blockchain, compliance, marketplace
- Add adapter layer for cloud integrations (Cloudflare, Kubernetes, Proxmox, storage)
- Update Crossplane provider with enhanced VM management capabilities
- Add comprehensive test suite for API endpoints and services
- Update frontend components with improved GraphQL subscriptions and real-time updates
- Enhance security configurations and headers (CSP, CORS, etc.)
- Update documentation and configuration files
- Add new CI/CD workflows and validation scripts
- Implement design system improvements and UI enhancements

api/src/services/websocket.ts

@@ -0,0 +1,61 @@
+/**
+ * WebSocket server for GraphQL subscriptions
+ */
+
+import { WebSocketServer } from 'ws'
+import { useServer } from 'graphql-ws/lib/use/ws'
+import { schema } from '../schema'
+import { createContext } from '../context'
+import { FastifyRequest } from 'fastify'
+
+export function createWebSocketServer(httpServer: any, path: string) {
+  const wss = new WebSocketServer({
+    server: httpServer,
+    path,
+  })
+
+  const serverCleanup = useServer(
+    {
+      schema,
+      context: async (ctx) => {
+        // Create a mock request for context
+        const request = {
+          headers: ctx.connectionParams?.authorization
+            ? { authorization: ctx.connectionParams.authorization as string }
+            : {},
+        } as FastifyRequest
+
+        return createContext(request)
+      },
+      onConnect: async (ctx) => {
+        // Validate connection - check authentication if needed
+        // For now, allow all connections
+        return true
+      },
+      onDisconnect: (ctx, code, reason) => {
+        // Handle disconnection
+        logger.info('WebSocket client disconnected', { code, reason })
+      },
+      onError: (ctx, msg, errors) => {
+        logger.error('WebSocket error', { message: msg, errors })
+      },
+    },
+    wss
+  )
+
+  // Graceful shutdown
+  const shutdown = () => {
+    serverCleanup.dispose()
+    wss.close()
+  }
+
+  process.on('SIGTERM', shutdown)
+  process.on('SIGINT', shutdown)
+
+  return {
+    wss,
+    serverCleanup,
+    shutdown,
+  }
+}
+