package model import "time" type UserID string type UserName string type CreatedAt time.Time type UpdatedAt time.Time type CreatedBy string type UpdatedBy string type User struct { ID UserID `json:"id"` Name UserName `json:"name"` CreatedAt CreatedAt `json:"created_at"` UpdatedAt UpdatedAt `json:"updated_at"` } type MessageRoleType string const ( MessageRoleUser MessageRoleType = "user" MessageRoleAI MessageRoleType = "ai" ) type MessageID string type Message struct { ID MessageID `json:"id"` UserID UserID `json:"user_id"` Type MessageRoleType `json:"type"` Text string `json:"text"` CreatedAt CreatedAt `json:"created_at"` CreatedBy CreatedBy `json:"created_by"` UpdatedAt UpdatedAt `json:"updated_at"` UpdatedBy UpdatedBy `json:"updated_by"` } type ServiceContext struct { User User `json:"user"` }