feat(gateway): GET /me/usage —— 用户自己租户的用量明细(余额+趋势+最近消耗)
面向用户口径(非 admin,受插件按请求 ctx 租户自动隔离):返回积分余额 + credit_enforce + 按天消耗趋势 + 区间合计 + 最近 10 条消耗明细。复用 UsageTrend/TenantBalance,新增 RecentUsage(按 tenant 取近 N 条 usage_event)。 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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@@ -550,6 +550,50 @@ func (h *Handler) TenantCurrent(c *gin.Context) {
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})
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}
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// MyUsage: GET /api/v1/me/usage?days= —— 当前用户自己租户的用量明细(余额 + 按天趋势 + 最近消耗)。
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// 面向用户口径(非 admin):只看自己租户,受插件按请求 ctx 租户自动隔离。
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func (h *Handler) MyUsage(c *gin.Context) {
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tid := tenantID(c)
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if tid == "" {
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c.JSON(http.StatusOK, gin.H{"tenant": nil})
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return
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}
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ctx := c.Request.Context()
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days := 30
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if v := c.Query("days"); v != "" {
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if n, err := strconv.Atoi(v); err == nil && n > 0 && n <= 90 {
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days = n
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}
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}
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now := time.Now()
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from := now.AddDate(0, 0, -(days - 1)).Format("20060102")
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to := now.Format("20060102")
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trend := h.db.UsageTrend(ctx, tid, from, to)
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var totTok, totCredits, totCost, totTasks int64
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for _, d := range trend {
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totTok += d.TotalTok
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totCredits += d.CreditsMicro
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totCost += d.CostMicros
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totTasks += d.TaskCount
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}
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recent := make([]gin.H, 0, 10)
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for _, u := range h.db.RecentUsage(ctx, tid, 10) {
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recent = append(recent, gin.H{
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"task_id": u.TaskID, "model": u.Model, "total_tok": u.TotalTok,
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"credits_micro": u.CreditsMicro, "cost_micros": u.CostMicros, "currency": u.Currency, "ts": u.TS,
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})
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}
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c.JSON(http.StatusOK, gin.H{
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"from": from, "to": to,
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"balance_micro": h.db.TenantBalance(ctx, tid),
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"credit_enforce": h.db.CreditEnforceEnabled(ctx),
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"trend": trend,
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"totals": gin.H{"total_tok": totTok, "credits_micro": totCredits, "cost_micros": totCost, "task_count": totTasks},
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"recent": recent,
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})
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}
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// sessionID 从请求取会话标识(真实场景应由会话中间件注入)。
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func sessionID(c *gin.Context) string {
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if s := c.GetHeader("X-Session-ID"); s != "" {
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