fix: simplify tool result handling and improve JSON processing

Author: liuruibin

apps/application/flow/tools.py

@@ -675,26 +675,22 @@ def _upsert_fragment(key, raw_id, func_name, part_args):
                                 chunk[0].content) > 0 else {}
                         else:
                             tool_result = {}
-                        text = tool_result.pop(
-                            'text') if 'text' in tool_result else None
+                        text = tool_result.get('text') if 'text' in tool_result else None
                         text_result = json.loads(text) if text else tool_result
                         if text:
-                            tool_lib_id = text_result.pop(
-                                'tool_id') if 'tool_id' in text_result else None
+                            tool_lib_id = text_result.pop('tool_id') if 'tool_id' in text_result else None
                         else:
-                            tool_lib_id = tool_result.pop(
-                                'tool_id') if 'tool_id' in tool_result else None
+                            tool_lib_id = tool_result.pop('tool_id') if 'tool_id' in tool_result else None
                         if tool_lib_id:
                             await save_tool_record(tool_lib_id, tool_info, tool_result, source_id, source_type)
-                        tool_result = json.dumps(
-                            text_result, ensure_ascii=False)
+                        tool_result = json.dumps(text_result, ensure_ascii=False)
                     except Exception as e:
                         tool_result = chunk[0].content
                     content = generate_tool_message_complete(
                         tool_info.get('icon', ''),
                         tool_info['name'],
                         tool_info['input'],
-                        tool_result + '\n\n'
+                        tool_result
                     )
                     chunk[0].content = content
                 else: