改动

internal/chat/domain.go

@@ -137,6 +137,7 @@ type Message struct {
 	PromptTokens         *int
 	CompletionTokens     *int
 	ThinkingTokens       *int
+	Attachments          []Attachment // 用户可读路径填充；composeHistory 不依赖此字段
 	CreatedAt, UpdatedAt time.Time
 }
 
@@ -173,7 +174,7 @@ type ConversationReader interface {
 type ConversationService interface {
 	Create(ctx context.Context, userID uuid.UUID, in CreateConversationInput) (*Conversation, error)
 	List(ctx context.Context, userID uuid.UUID, filter ConversationFilter) ([]Conversation, error)
-	Get(ctx context.Context, userID, id uuid.UUID) (*Conversation, []Message, error)
+	Get(ctx context.Context, userID, id uuid.UUID, limit int) (*Conversation, []Message, error)
 	UpdateTitle(ctx context.Context, userID, id uuid.UUID, title string) error
 	SoftDelete(ctx context.Context, userID, id uuid.UUID) error
 }
@@ -203,7 +204,7 @@ type MessageService interface {
 	Send(ctx context.Context, userID, conversationID uuid.UUID, content string, attachmentIDs []uuid.UUID) (userMsgID, assistantMsgID int64, err error)
 	Stream(ctx context.Context, userID, conversationID uuid.UUID, sinceMessageID int64) (<-chan SSEEvent, error)
 	Cancel(ctx context.Context, userID uuid.UUID, messageID int64) error
-	Retry(ctx context.Context, userID uuid.UUID, messageID int64) (newAssistantMsgID int64, err error)
+	Retry(ctx context.Context, userID uuid.UUID, messageID int64) (newAssistantMsgID int64, conversationID uuid.UUID, err error)
 	ListMessages(ctx context.Context, userID, conversationID uuid.UUID, beforeID *int64, limit int) ([]Message, error)
 }