完善多赛道联调与全局产品架构

backend/internal/service/entry_home_service.go

@@ -55,6 +55,8 @@ type EntrySessionSummary struct {
 	EventName   string  `json:"eventName"`
 	ReleaseID   *string `json:"releaseId,omitempty"`
 	ConfigLabel *string `json:"configLabel,omitempty"`
+	VariantID   *string `json:"variantId,omitempty"`
+	VariantName *string `json:"variantName,omitempty"`
 	RouteCode   *string `json:"routeCode,omitempty"`
 	LaunchedAt  string  `json:"launchedAt"`
 	StartedAt   *string `json:"startedAt,omitempty"`
@@ -139,10 +141,12 @@ func (s *EntryHomeService) GetEntryHome(ctx context.Context, input EntryHomeInpu
 
 func buildEntrySessionSummary(session *postgres.Session) EntrySessionSummary {
 	summary := EntrySessionSummary{
-		ID:         session.SessionPublicID,
-		Status:     session.Status,
-		RouteCode:  session.RouteCode,
-		LaunchedAt: session.LaunchedAt.Format(timeRFC3339),
+		ID:          session.SessionPublicID,
+		Status:      session.Status,
+		VariantID:   session.VariantID,
+		VariantName: session.VariantName,
+		RouteCode:   session.RouteCode,
+		LaunchedAt:  session.LaunchedAt.Format(timeRFC3339),
 	}
 	if session.EventPublicID != nil {
 		summary.EventID = *session.EventPublicID