初始化项目框架，完成部分接口开发

internal/model/entity/user_chapter_purchases.go

@@ -0,0 +1,19 @@
+// =================================================================================
+// Code generated and maintained by GoFrame CLI tool. DO NOT EDIT.
+// =================================================================================
+
+package entity
+
+import (
+	"github.com/gogf/gf/v2/os/gtime"
+)
+
+// UserChapterPurchases is the golang structure for table user_chapter_purchases.
+type UserChapterPurchases struct {
+	Id           int64       `json:"id"           orm:"id"            description:"购买记录ID"` // 购买记录ID
+	UserId       int64       `json:"userId"       orm:"user_id"       description:"用户ID"`   // 用户ID
+	BookId       int64       `json:"bookId"       orm:"book_id"       description:"小说ID"`   // 小说ID
+	ChapterId    int64       `json:"chapterId"    orm:"chapter_id"    description:"章节ID"`   // 章节ID
+	PointsUsed   int         `json:"pointsUsed"   orm:"points_used"   description:"消耗积分数"`  // 消耗积分数
+	PurchaseTime *gtime.Time `json:"purchaseTime" orm:"purchase_time" description:"购买时间"`   // 购买时间
+}