fix(canvas): 提示词卡片 - 按内容自适应高度并隐藏无效参数区

web/src/components/canvas/canvas-resource-mention-textarea.tsx

@@ -120,7 +120,7 @@ export const CanvasResourceMentionTextarea = forwardRef<HTMLTextAreaElement, Pro
         });
         observer.observe(container);
         return () => observer.disconnect();
-    }, [onContentSizeChange, reportContentSize, useRichEditor]);
+    }, [onContentSizeChange, reportContentSize, useRichEditor, value]);
 
     const focusEditor = (selectionStart?: number) => {
         requestAnimationFrame(() => {