优化chatgpt检查

backend/internal/provider/chatgpt/client.go

@@ -14,6 +14,7 @@ import (
 	"io"
 	stdhttp "net/http"
 	"net/url"
+	"os"
 	"path/filepath"
 	"strconv"
 	"strings"
@@ -879,6 +880,9 @@ func (c *Client) getConversation(ctx context.Context, session tlsclient.HttpClie
 	if err := ensureOK(resp.StatusCode, body, "conversation_get"); err != nil {
 		return nil, err
 	}
+	if dir := os.Getenv("CHATGPT_DEBUG_DUMP"); dir != "" {
+		_ = os.WriteFile(filepath.Join(dir, fmt.Sprintf("conv-%s-%d.json", conversationID, time.Now().UnixMilli())), body, 0o644)
+	}
 	var payload map[string]any
 	if err := json.Unmarshal(body, &payload); err != nil {
 		return nil, err

backend/internal/provider/chatgpt/util.go

@@ -157,8 +157,12 @@ func conversationEndedWithoutImage(conversation map[string]any) bool {
 		}
 		if role == "assistant" {
 			if content, _ := message["content"].(map[string]any); content != nil {
-				if ct := stringValue(content["content_type"]); ct != "" && ct != "text" {
-					return false // code/multimodal turn — generation underway
+				// Only tool-invoking content types mean generation is underway.
+				// Context nodes (model_editable_context, thoughts, …) also appear
+				// on refused turns and must NOT suppress the detection.
+				switch stringValue(content["content_type"]) {
+				case "code", "multimodal_text":
+					return false
 				}
 			}
 		}