feat(captain): align streaming fallbacks

internal/handler/api/v1/copilot_handler.go

@@ -349,17 +349,37 @@ func copilotThreadPayload(thread *model.CopilotThread) gin.H {
 	}
 }
 
+func copilotThreadPushPayload(thread *model.CopilotThread) gin.H {
+	return gin.H{
+		"id":         thread.ID,
+		"title":      thread.Title,
+		"created_at": thread.CreatedAt.Unix(),
+		"user":       copilotUserPayload(&thread.User, thread.UserID, thread.AccountID),
+		"account_id": thread.AccountID,
+	}
+}
+
 func copilotMessagePayload(message *model.CopilotMessage) gin.H {
 	return gin.H{
 		"id":             message.ID,
 		"message":        rawJSONValue(message.Message),
 		"message_type":   message.MessageType,
 		"created_at":     message.CreatedAt.Unix(),
-		"copilot_thread": copilotThreadPayload(&message.CopilotThread),
+		"copilot_thread": copilotThreadPushPayload(&message.CopilotThread),
 		"account_id":     message.AccountID,
 	}
 }
 
+func copilotMessagePushPayload(message *model.CopilotMessage) gin.H {
+	return gin.H{
+		"id":             message.ID,
+		"message":        rawJSONValue(message.Message),
+		"message_type":   message.MessageType,
+		"created_at":     message.CreatedAt.Unix(),
+		"copilot_thread": copilotThreadPushPayload(&message.CopilotThread),
+	}
+}
+
 func copilotUserPayload(user *model.User, fallbackID, accountID uint) gin.H {
 	if user == nil || user.ID == 0 {
 		return gin.H{"id": fallbackID, "account_id": accountID, "type": "user"}