fix: preserve original completion_text in skills_like tool re-query (#8240)

Only overwrite tool-call-related fields from the re-query response, preserving the original completion_text and reasoning_content that were already sent to the user.

Author: EmilyCheoh

astrbot/core/agent/runners/tool_loop_agent_runner.py

@@ -816,8 +816,9 @@ async def step(self):
         # 如果有工具调用，还需处理工具调用
         if llm_resp.tools_call_name:
             if self.tool_schema_mode == "skills_like":
-                llm_resp, _ = await self._resolve_tool_exec(llm_resp)
-                if not llm_resp.tools_call_name:
+                requery_resp, _ = await self._resolve_tool_exec(llm_resp)
+                if not requery_resp.tools_call_name:
+                    llm_resp = requery_resp
                     logger.warning(
                         "skills_like tool re-query returned no tool calls; fallback to assistant response."
                     )
@@ -845,6 +846,10 @@ async def step(self):
 
                     await self._complete_with_assistant_response(llm_resp)
                     return
+                else:
+                    llm_resp.tools_call_name = requery_resp.tools_call_name
+                    llm_resp.tools_call_args = requery_resp.tools_call_args
+                    llm_resp.tools_call_ids = requery_resp.tools_call_ids
 
             tool_call_result_blocks = []
             cached_images = []  # Collect cached images for LLM visibility