userfront 이력 session ID기반 작업 완료.

backend/internal/domain/idp_models.go

@@ -42,6 +42,7 @@ type PasswordPolicy struct {
 type Token struct {
 	JWT        string
 	Expiration time.Time
+	SessionID  string
 }
 
 // AuthInfo contains authentication information after a successful login.

backend/internal/domain/models.go

@@ -10,8 +10,10 @@ type AuditLog struct {
 	EventID   string    `json:"event_id"`
 	Timestamp time.Time `json:"timestamp"`
 	UserID    string    `json:"user_id"`
+	SessionID string    `json:"session_id,omitempty"`
 	EventType string    `json:"event_type"` // e.g., "login_success", "login_failed", "otp_sent"
 	Status    string    `json:"status"`     // e.g., "success", "failure"
+	AuthMethod string   `json:"auth_method,omitempty"`
 	IPAddress string    `json:"ip_address"`
 	UserAgent string    `json:"user_agent"`
 	DeviceID  string    `json:"device_id,omitempty"`