增加用户认证、等级、徽章与积分体系，并优化管理后台体验。

覆盖站长调账与积分解锁内容；后台按审核优先分组导航，仪表盘展示待办，用户管理改为成员目录式布局。

Co-authored-by: Cursor <cursoragent@cursor.com>

model/db.go

@@ -40,6 +40,8 @@ func InitDB(dbPath string) error {
 		&GiteaRepo{},
 		&PrivateMessage{}, &PostReport{},
 		&Media{},
+		&PointLedger{}, &CheckIn{}, &LotteryDraw{}, &PostContentUnlock{},
+		&BadgeDef{}, &UserBadge{},
 	); err != nil {
 		return fmt.Errorf("自动迁移失败: %w", err)
 	}
@@ -50,6 +52,47 @@ func InitDB(dbPath string) error {
 	_ = db.Model(&Post{}).Where("post_type = '' OR post_type IS NULL").Update("post_type", PostTypeNormal).Error
 
 	DB = db
+	seedDefaultBadges(db)
+	backfillUserExp(db)
 	log.Println("[model] SQLite 数据库初始化完成:", dbPath)
 	return nil
 }
+
+// seedDefaultBadges 写入内置自动徽章（已存在则跳过）
+func seedDefaultBadges(db *gorm.DB) {
+	defs := []BadgeDef{
+		{Code: "tenure_30", Name: "初来乍到", Description: "注册满 30 天", Icon: "calendar", Kind: BadgeKindAuto, Metric: BadgeMetricTenureDays, Threshold: 30, SortOrder: 10, Enabled: true},
+		{Code: "tenure_365", Name: "资深居民", Description: "注册满 365 天", Icon: "calendar-heart", Kind: BadgeKindAuto, Metric: BadgeMetricTenureDays, Threshold: 365, SortOrder: 20, Enabled: true},
+		{Code: "likes_10", Name: "小有人气", Description: "帖子获赞累计 10", Icon: "heart", Kind: BadgeKindAuto, Metric: BadgeMetricLikesReceived, Threshold: 10, SortOrder: 30, Enabled: true},
+		{Code: "likes_100", Name: "人气作者", Description: "帖子获赞累计 100", Icon: "heart-handshake", Kind: BadgeKindAuto, Metric: BadgeMetricLikesReceived, Threshold: 100, SortOrder: 40, Enabled: true},
+		{Code: "likes_1000", Name: "人气巨星", Description: "帖子获赞累计 1000", Icon: "flame", Kind: BadgeKindAuto, Metric: BadgeMetricLikesReceived, Threshold: 1000, SortOrder: 50, Enabled: true},
+		{Code: "income_100", Name: "小有进账", Description: "创作分成累计 100 积分", Icon: "coins", Kind: BadgeKindAuto, Metric: BadgeMetricCreatorIncome, Threshold: 100, SortOrder: 60, Enabled: true},
+		{Code: "income_1000", Name: "创作达人", Description: "创作分成累计 1000 积分", Icon: "gem", Kind: BadgeKindAuto, Metric: BadgeMetricCreatorIncome, Threshold: 1000, SortOrder: 70, Enabled: true},
+	}
+	for _, d := range defs {
+		var n int64
+		db.Model(&BadgeDef{}).Where("code = ?", d.Code).Count(&n)
+		if n == 0 {
+			_ = db.Create(&d).Error
+		}
+	}
+}
+
+// backfillUserExp 对 Exp 仍为 0 的用户按存量公开内容粗算经验（仅补一次量级）
+func backfillUserExp(db *gorm.DB) {
+	var users []User
+	if err := db.Select("id", "exp").Where("exp = 0").Find(&users).Error; err != nil {
+		return
+	}
+	for _, u := range users {
+		var posts, comments int64
+		var likeSum int64
+		_ = db.Model(&Post{}).Where("user_id = ? AND status = ?", u.ID, ContentStatusPublished).Count(&posts).Error
+		_ = db.Model(&Comment{}).Where("user_id = ? AND status = ?", u.ID, ContentStatusPublished).Count(&comments).Error
+		_ = db.Model(&Post{}).Select("COALESCE(SUM(like_count), 0)").Where("user_id = ? AND status = ?", u.ID, ContentStatusPublished).Scan(&likeSum).Error
+		exp := int(posts)*10 + int(comments)*2 + int(likeSum)
+		if exp > 0 {
+			_ = db.Model(&User{}).Where("id = ? AND exp = 0", u.ID).Update("exp", exp).Error
+		}
+	}
+}