feat: add hanko logger middleware to reduce redundancy

backend/server/middleware/logger.go

@@ -0,0 +1,15 @@
+package middleware
+
+import (
+	"github.com/labstack/echo/v4"
+	"github.com/labstack/echo/v4/middleware"
+)
+
+func GetLoggerMiddleware() echo.MiddlewareFunc {
+	return middleware.LoggerWithConfig(middleware.LoggerConfig{
+		Format: `{"time":"${time_rfc3339_nano}","time_unix":"${time_unix}","id":"${id}","remote_ip":"${remote_ip}",` +
+			`"host":"${host}","method":"${method}","uri":"${uri}","user_agent":"${user_agent}",` +
+			`"status":${status},"error":"${error}","latency":${latency},"latency_human":"${latency_human}"` +
+			`,"bytes_in":${bytes_in},"bytes_out":${bytes_out}},"referer":"${referer}"` + "\n",
+	})
+}