🎨 优化扩展模块，完成ai接入和对话功能

data/st-core-scripts/scripts/extensions/attachments/notepad.html

@@ -0,0 +1,10 @@
+<div class="flex-container flexFlowColumn height100p">
+    <label for="notepadFileName">
+        File Name
+    </label>
+    <input type="text" class="text_pole" id="notepadFileName" name="notepadFileName" value="" />
+    <label>
+        File Content
+    </label>
+    <textarea id="notepadFileContent" name="notepadFileContent" class="text_pole textarea_compact monospace flex1" placeholder="Enter your notes here."></textarea>
+</div>