优化

src/shared/components/LayoutPreferenceList.test.ts

@@ -0,0 +1,14 @@
+import { readFileSync } from 'node:fs'
+import { resolve } from 'node:path'
+import { describe, expect, it } from 'vitest'
+
+const source = readFileSync(resolve(process.cwd(), 'src/shared/components/LayoutPreferenceList.vue'), 'utf8')
+
+describe('LayoutPreferenceList overflow layout', () => {
+  it('keeps long item collections inside a viewport-bounded scroll area', () => {
+    expect(source).toContain('grid-template-rows: auto minmax(0, 1fr) auto')
+    expect(source).toContain('max-height: min(520px, calc(100dvh - 120px))')
+    expect(source).toContain('.layout-preference-list__scroll { min-height: 0;')
+    expect(source).toContain('overflow-y: auto')
+  })
+})