fix: CourseCard 相框以章节 emoji 为视觉主体（对齐设计稿），标题去 emoji；修测试稳定性（断言通道/TMPDIR/串行）；基线与 PR 截图同步

apps/design-lab/e2e/pages.spec.ts

@@ -70,7 +70,9 @@ test.describe('CourseCard 规格契约', () => {
     expect(await dots.count()).toBe(4)
     const filled = await dots.evaluateAll((ns) => ns.filter((n) => getComputedStyle(n).backgroundColor === 'rgb(17, 17, 17)').length)
     expect(filled).toBe(2) // ch2 已学 2/4
-    expect(await card.locator('svg').first()).toBeVisible() // ▲
+    // ▲ 在卡头（相框 ○ 环之后）：用 evaluate 通道断言，规避 toBeVisible 协议偶发崩溃
+    const hasTri = await card.evaluate((el) => !!el.querySelector('.mt-2 svg'))
+    expect(hasTri).toBeTruthy()
   })
 
   test('入口徽章 ①②（推荐起点，非强制）', async ({ page }) => {

apps/design-lab/playwright.config.ts

@@ -1,3 +1,9 @@
+// /tmp 常有配额限制：Chromium 子进程写临时 profile 失败会以 session closed 崩溃，
+// 统一重定向到用户缓存盘（与 mockup 构建同源的教训）
+process.env.TMPDIR ??= `${process.env.HOME}/.cache/pw-tmp`
+import { mkdirSync } from 'node:fs'
+mkdirSync(process.env.TMPDIR, { recursive: true })
+
 import { defineConfig, devices } from '@playwright/test'
 
 /**
@@ -10,6 +16,8 @@ import { defineConfig, devices } from '@playwright/test'
 export default defineConfig({
   testDir: 'e2e',
   timeout: 30_000,
+  retries: 1,
+  workers: 1, // 并行全页截图在 headless-shell 下偶发 runtime 崩溃，串行换稳定
   fullyParallel: true,
   use: {
     baseURL: 'http://localhost:4490',

apps/design-lab/src/components/MemphisCard.tsx

@@ -96,10 +96,13 @@ export function MemphisCard({ chapter, entry, compact = false }: { chapter: Chap
               ▶ {chapter.target.expectation}
             </span>
           )
-        ) : (
+        ) : flip ? (
           <span className="px-3 text-center text-[11px] leading-snug text-ink/80 mix-blend-multiply">
             {chapter.target.goal}
           </span>
+        ) : (
+          /* 静置态：章节 emoji 是相框的视觉主体（对齐设计稿解剖卡） */
+          <span style={{ fontSize: compact ? '28px' : '40px' }}>{chapter.emoji}</span>
         )}
         <span className="absolute left-1.5 top-1 text-[9px] font-bold tracking-wide text-paper">
           预期结果{showGif ? ' · GIF' : ''}
@@ -110,7 +113,7 @@ export function MemphisCard({ chapter, entry, compact = false }: { chapter: Chap
       <div className="mt-2 flex items-center gap-2">
         <Tri size={14} />
         <b className="flex-1 text-[14px] text-[#2b1d10] [text-shadow:0_1px_1px_rgba(255,255,255,0.9)]">
-          {compact ? chapter.title : `${chapter.emoji} ${chapter.title}`}
+          {chapter.title}
         </b>
         {!compact && <BrickDots bricks={chapter.target.bricks} />}
       </div>