Merge pull request #726 from DaydreamCoding/feat/dual-mode-umq

feat(gateway): 双模式用户消息队列 — 串行队列 + 软性限速

backend/internal/handler/dto/mappers.go

@@ -216,6 +216,10 @@ func AccountFromServiceShallow(a *service.Account) *Account {
 			buffer := a.GetRPMStickyBuffer()
 			out.RPMStickyBuffer = &buffer
 		}
+		// 用户消息队列模式
+		if mode := a.GetUserMsgQueueMode(); mode != "" {
+			out.UserMsgQueueMode = &mode
+		}
 		// TLS指纹伪装开关
 		if a.IsTLSFingerprintEnabled() {
 			enabled := true

backend/internal/handler/dto/types.go

@@ -155,9 +155,10 @@ type Account struct {
 
 	// RPM 限制（仅 Anthropic OAuth/SetupToken 账号有效）
 	// 从 extra 字段提取，方便前端显示和编辑
-	BaseRPM         *int    `json:"base_rpm,omitempty"`
-	RPMStrategy     *string `json:"rpm_strategy,omitempty"`
-	RPMStickyBuffer *int    `json:"rpm_sticky_buffer,omitempty"`
+	BaseRPM          *int    `json:"base_rpm,omitempty"`
+	RPMStrategy      *string `json:"rpm_strategy,omitempty"`
+	RPMStickyBuffer  *int    `json:"rpm_sticky_buffer,omitempty"`
+	UserMsgQueueMode *string `json:"user_msg_queue_mode,omitempty"`
 
 	// TLS指纹伪装（仅 Anthropic OAuth/SetupToken 账号有效）
 	// 从 extra 字段提取，方便前端显示和编辑