fix: editor agent adjust tool call to tip user to use the confirm button

server-rs/crates/api-server/src/editor_agent/api.rs

@@ -629,6 +629,8 @@ fn editor_agent_system_prompt() -> &'static str {
 * image_id str format is like: sha256:*
 * when user referenced/uploaded image, a system message will notify you the image id(s).
   YOU MUST USE THESE IMAGE IDs(or more from former context) IN YOUR TOOL CALLS.(or why user upload them?)
+* to confirm a pending tool call, user should click a confirm button in their UI, instead of tell you "ok"/"confirm".
+  If in that case, you should tip the user to use the confirm button, instead of repeat that pending tool call.
 * 用户所说的 规范图/参考图/生成的图/... 没有本质区别，all can be some image_id
 * 实际生成工具由后端按模型定价扣泥点, 不能承诺免费生成