add reasoning block

src/types/chat.ts

@@ -21,6 +21,7 @@ export type ChatUserMessage = {
 export type ChatAssistantMessage = {
 	role: 'assistant'
 	content: string
+	reasoningContent: string
 	id: string
 	metadata?: {
 		usage?: ResponseUsage
@@ -44,6 +45,7 @@ export type SerializedChatUserMessage = {
 export type SerializedChatAssistantMessage = {
 	role: 'assistant'
 	content: string
+	reasoningContent: string
 	id: string
 	metadata?: {
 		usage?: ResponseUsage

src/types/llm/response.ts

@@ -39,7 +39,8 @@ type NonStreamingChoice = {
 type StreamingChoice = {
   finish_reason: string | null
   delta: {
-    content: string | null
+		content: string | null
+		reasoning_content: string | null
     role?: string
   }
   error?: Error