feat: implement client-side status code handling

pkg/utils/gin_writer_wrapper.go

@@ -0,0 +1,20 @@
+package utils
+
+import "github.com/gin-gonic/gin"
+
+type GinCustomWriter struct {
+	gin.ResponseWriter
+
+	customCode int
+}
+
+func NewGinCustomWriter(c *gin.Context, code int) *GinCustomWriter {
+	return &GinCustomWriter{
+		ResponseWriter: c.Writer,
+		customCode:     code,
+	}
+}
+
+func (w *GinCustomWriter) WriteHeader(code int) {
+	w.ResponseWriter.WriteHeader(w.customCode)
+}