feat: increase default timeout to 5 minutes

server/internal/api/admin_channels.go

@@ -184,7 +184,7 @@ func (h *Handler) AdminCreateChannel(c *gin.Context) {
 		Name: req.Name, Provider: req.Provider, Formats: formats, BaseURL: baseURL,
 		BaseURLs: normalizeBaseURLs(req.BaseURLs),
 		APIKeyEnc: enc, Weight: intOr(req.Weight, 1), Priority: intOr(req.Priority, 0),
-		TimeoutMS: intOr(req.TimeoutMS, 120000), MaxConcurrency: intOr(req.MaxConcurrency, 16),
+		TimeoutMS: intOr(req.TimeoutMS, 300000), MaxConcurrency: intOr(req.MaxConcurrency, 16),
 		HealthStatus: store.ChannelHealthHealthy, Enabled: boolOr(req.Enabled, true),
 	}
 	if err := h.a.DB.Create(&ch).Error; err != nil {

server/internal/store/models.go

@@ -92,7 +92,7 @@ type Channel struct {
 	APIKeyEnc      string            `gorm:"size:1024;not null" json:"-"` // AES-GCM 密文
 	Weight         int       `gorm:"not null;default:1" json:"weight"`
 	Priority       int       `gorm:"not null;default:0" json:"priority"` // 数值小优先
-	TimeoutMS      int       `gorm:"not null;default:120000" json:"timeout_ms"`
+	TimeoutMS      int       `gorm:"not null;default:300000" json:"timeout_ms"`
 	MaxConcurrency int       `gorm:"not null;default:16" json:"max_concurrency"`
 	HealthStatus   string    `gorm:"size:16;not null;default:healthy" json:"health_status"`
 	Enabled        bool      `gorm:"not null;default:true" json:"enabled"`