Add files via upload

internal/app/app.go

@@ -1337,6 +1337,7 @@ func setupRoutes(
 
 		// 对话附件（chat_uploads）管理
 		protected.GET("/chat-uploads", chatUploadsHandler.List)
+		protected.GET("/chat-uploads/export", chatUploadsHandler.Export)
 		protected.GET("/chat-uploads/download", chatUploadsHandler.Download)
 		protected.GET("/chat-uploads/content", chatUploadsHandler.GetContent)
 		protected.POST("/chat-uploads", chatUploadsHandler.Upload)

internal/database/conversation.go

@@ -861,6 +861,19 @@ func (db *DB) einoReductionBaseDir() string {
 	return filepath.Join("tmp", "reduction")
 }
 
+// EinoReductionBaseDir returns the configured reduction cache root.
+func (db *DB) EinoReductionBaseDir() string {
+	return db.einoReductionBaseDir()
+}
+
+// ConversationArtifactsBaseDir returns the conversation-scoped artifacts root.
+func (db *DB) ConversationArtifactsBaseDir() string {
+	if db == nil {
+		return ""
+	}
+	return strings.TrimSpace(db.conversationArtifactsDir)
+}
+
 func (db *DB) einoWorkspaceBaseDir() string {
 	if db == nil {
 		return ""