feat(api): GET /v1/user/balance 查询用户余额

users 表新增 credits_used（累计消耗积分）：扣费累加、失败退款回减（refundIfNeeded / 维护清扫改走 RefundCredits），充值/CDK/签到发放不计入。接口返回 {object,balance,used,total}，Bearer API Key 鉴权，与其他 v1 接口同一 CORS 与错误格式。站内接口文档与 README 补充端点说明。
2026-08-10 14:59:48 +08:00
parent 2c47344ed9
commit f94a7ace5f
9 changed files with 79 additions and 6 deletions
@@ -239,7 +239,7 @@ func (m *MaintenanceService) tick(ctx context.Context) {
 			if !claimed {
 				continue
 			}
-			if _, err := m.users.AdjustCredits(ctx, e.UserID, e.Cost); err != nil {
+			if _, err := m.users.RefundCredits(ctx, e.UserID, e.Cost); err != nil {
 				log.Printf("maintenance: refund abandoned event %s (user %s, %.0f): %v", e.ID, e.UserID, e.Cost, err)
 			} else {
 				refunded++