Refactor order and tenant ledger models to use consts for Currency and Type fields; add new UserStatus values; implement comprehensive test cases for content, creator, order, super, and wallet services.

backend/database/models/comments.gen.go

@@ -26,6 +26,7 @@ type Comment struct {
 	CreatedAt time.Time      `gorm:"column:created_at;type:timestamp with time zone;default:now()" json:"created_at"`
 	UpdatedAt time.Time      `gorm:"column:updated_at;type:timestamp with time zone;default:now()" json:"updated_at"`
 	DeletedAt gorm.DeletedAt `gorm:"column:deleted_at;type:timestamp with time zone" json:"deleted_at"`
+	User      *User          `gorm:"foreignKey:UserID;references:ID" json:"user,omitempty"`
 }
 
 // Quick operations without importing query package