第 5 阶段：纠纷、通知与后台-1

backend/internal/modules/systemconfig/dto.go

@@ -0,0 +1,18 @@
+package systemconfig
+
+import "time"
+
+type ConfigDTO struct {
+	ID          uint64    `json:"id"`
+	Key         string    `json:"key"`
+	Value       string    `json:"value"`
+	Description string    `json:"description"`
+	UpdatedBy   *uint64   `json:"updated_by"`
+	CreatedAt   time.Time `json:"created_at"`
+	UpdatedAt   time.Time `json:"updated_at"`
+}
+
+type UpdateRequest struct {
+	Value       string `json:"value" binding:"required"`
+	Description string `json:"description"`
+}