fix(editor): unify Ace editor padding

src/utils/__tests__/aceEditor.spec.ts

@@ -0,0 +1,17 @@
+import { configureAceEditorPadding } from '@/utils/aceEditor'
+import { describe, expect, it, vi } from 'vitest'
+
+describe('Ace editor configuration', () => {
+  it('applies the shared content padding and scroll margin', () => {
+    const setPadding = vi.fn()
+    const setScrollMargin = vi.fn()
+    const editor = {
+      renderer: { setPadding, setScrollMargin },
+    } as unknown as Parameters<typeof configureAceEditorPadding>[0]
+
+    configureAceEditorPadding(editor)
+
+    expect(setPadding).toHaveBeenCalledWith(12)
+    expect(setScrollMargin).toHaveBeenCalledWith(8, 8, 0, 0)
+  })
+})

src/utils/aceEditor.ts

@@ -0,0 +1,15 @@
+import type { Ace } from 'ace-builds'
+
+const ACE_EDITOR_PADDING = 12
+const ACE_EDITOR_SCROLL_MARGIN = { bottom: 8, left: 0, right: 0, top: 8 }
+
+/** 让所有 Ace 编辑器的文本内容与普通输入框保持一致的内边距和滚动留白。 */
+export function configureAceEditorPadding(editor: Ace.Editor) {
+  editor.renderer.setPadding(ACE_EDITOR_PADDING)
+  editor.renderer.setScrollMargin(
+    ACE_EDITOR_SCROLL_MARGIN.top,
+    ACE_EDITOR_SCROLL_MARGIN.bottom,
+    ACE_EDITOR_SCROLL_MARGIN.left,
+    ACE_EDITOR_SCROLL_MARGIN.right,
+  )
+}