feat(agent): 支持持久化 /btw 旁路提问

agent/chat.go

@@ -147,7 +147,7 @@ func (c *ChatAgent) Chat(ctx context.Context, agentKey, sessionID, message strin
 		// (自定义 agent 各自一份;留空/0 用通用默认:10 轮)。
 		Settlement:   wrapupSettlement(agentKey, nil),
 		NonStreaming: c.nonStreaming(), // 该 profile 选非流式时走 Provider.Complete
-		MaxTokens:    c.maxTokens(),   // 0 = 不发上限,由服务端默认值决定
+		MaxTokens:    c.maxTokens(),    // 0 = 不发上限,由服务端默认值决定
 	}
 	if c.guard != nil {
 		opts.Hooks = c.guard.Hooks()
@@ -156,6 +156,7 @@ func (c *ChatAgent) Chat(ctx context.Context, agentKey, sessionID, message strin
 		opts.Transcript = c.tx
 		opts.SessionID = sessionID
 	}
+	ctx = attachSideCapture(ctx, &opts)
 	s := agentcore.NewSession(opts)
 	defer s.Close()
 	// reload prior conversation so the agent has context across turns (each Chat is