[PHASE-8] Expose metrics and pprof endpoints

cmd/server/main.go

@@ -55,12 +55,26 @@ func main() {
 	wisdomService := service.NewWisdomService(genAdapter, verifier, quoteService)
 
 	// Create server configuration
-	serverConfig := server.DefaultConfig()
+	serverConfig := &server.Config{
-	serverConfig.Address = addr
+		Address:  cfg.Server.Address,
+		Timeouts: server.TimeoutConfig{
+			Read:       cfg.Server.Timeouts.Read,
+			Write:      cfg.Server.Timeouts.Write,
+			Connection: cfg.Server.Timeouts.Connection,
+		},
+	}
+
+	// Start metrics and pprof HTTP server
+	go func() {
+		http.Handle("/metrics", promhttp.Handler())
+		logger.Info("starting metrics server", "address", cfg.Metrics.Address)
+		if err := http.ListenAndServe(cfg.Metrics.Address, nil); err != nil {
+			logger.Error("metrics server failed", sl.Err(err))
+		}
+	}()
 
 	// Create server
-	srv := server.NewTCPServer(wisdomService,
+	srv := server.NewTCPServer(wisdomService, serverConfig,
-		server.WithConfig(serverConfig),
 		server.WithLogger(logger))
 
 	// Start server