Enhance GetServers API to include load balancer config and update tests

- Modified the GetServers endpoint to return the current load balancer configuration for each server.
- Added a new field "loadBalancer" to the server details, including the load balancer strategy name.
- Updated unit tests to validate the new "loadBalancer" field in the API response.
- Adjusted test setup to include the default load balancer strategy configuration.

api/api.go

@@ -281,13 +281,14 @@ func (a *API) GetServers(context.Context, *emptypb.Empty) (*structpb.Struct, err
 	_, span := otel.Tracer(config.TracerName).Start(a.ctx, "Get Servers")
 	defer span.End()
 
-	servers := make(map[string]interface{})
+	servers := make(map[string]any)
 	for name, server := range a.Servers {
-		servers[name] = map[string]interface{}{
+		servers[name] = map[string]any{
 			"network":      server.Network,
 			"address":      server.Address,
 			"status":       uint(server.Status),
 			"tickInterval": server.TickInterval.Nanoseconds(),
+			"loadBalancer": map[string]any{"strategy": server.LoadbalancerStrategyName},
 		}
 	}
 

api/api_test.go

@@ -342,11 +342,12 @@ func TestGetServers(t *testing.T) {
 			Options: network.Option{
 				EnableTicker: false,
 			},
-			Proxies:          []network.IProxy{proxy},
-			Logger:           zerolog.Logger{},
-			PluginRegistry:   pluginRegistry,
-			PluginTimeout:    config.DefaultPluginTimeout,
-			HandshakeTimeout: config.DefaultHandshakeTimeout,
+			Proxies:                  []network.IProxy{proxy},
+			Logger:                   zerolog.Logger{},
+			PluginRegistry:           pluginRegistry,
+			PluginTimeout:            config.DefaultPluginTimeout,
+			HandshakeTimeout:         config.DefaultHandshakeTimeout,
+			LoadbalancerStrategyName: config.DefaultLoadBalancerStrategy,
 		},
 	)
 
@@ -376,6 +377,9 @@ func TestGetServers(t *testing.T) {
 		tickInterval, ok := defaultServer["tickInterval"].(float64)
 		assert.True(t, ok)
 		assert.Equal(t, config.DefaultTickInterval.Nanoseconds(), int64(tickInterval))
+		loadBalancer, ok := defaultServer["loadBalancer"].(map[string]interface{})
+		assert.True(t, ok)
+		assert.Equal(t, config.DefaultLoadBalancerStrategy, loadBalancer["strategy"])
 	} else {
 		t.Errorf("servers.default is not found or not a map")
 	}