Add authentication function

Signed-off-by: Asai Neko <sugar@sne.moe>

server/router.go

@@ -1,7 +1,7 @@
 package server
 
 import (
-	"nixcn-cms/service/check"
+	"nixcn-cms/service/auth"
 
 	"github.com/gin-gonic/gin"
 )
@@ -9,5 +9,5 @@ import (
 func Router(e *gin.Engine) {
 	// API Services
 	api := e.Group("/api/v1")
-	check.Handler(api.Group("/check"))
+	auth.Handler(api.Group("/auth"))
 }