do not panic when agent was not configured

modules/agent/common/config.go

@@ -7,6 +7,7 @@ package common
 import (
 	"infini.sh/console/modules/agent/model"
 	"infini.sh/framework/core/env"
+	log "src/github.com/cihub/seelog"
 )
 
 
@@ -14,7 +15,7 @@ func GetAgentConfig() *model.AgentConfig {
 	agentCfg := &model.AgentConfig{}
 	_, err := env.ParseConfig("agent", agentCfg )
 	if err != nil {
-		panic(err)
+		log.Error("agent config not found: %v", err)
 	}
 	return agentCfg
 }