style(speaking): fix eslint brace-style + no-multi-spaces in AISummary

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/views/Student/components/SpeakingClassPanel/AISummary.vue

@@ -57,8 +57,14 @@ const renderedHtml = computed(() => renderReportMarkdown(props.markdown))
 // 「刚刚生成」/「N 秒前生成」/「N 分钟前生成」 — 每秒重算
 const now = ref(Date.now())
 let timer: number | null = null
-onMounted(() => { timer = window.setInterval(() => { now.value = Date.now() }, 1000) })
-onUnmounted(() => { if (timer) clearInterval(timer) })
+onMounted(() => {
+  timer = window.setInterval(() => {
+    now.value = Date.now()
+  }, 1000)
+})
+onUnmounted(() => {
+  if (timer) clearInterval(timer)
+})
 
 function formatTpl(tpl: string, vars: Record<string, string | number>): string {
   return tpl.replace(/\{(\w+)\}/g, (_, k) => String(vars[k] ?? ''))
@@ -69,7 +75,7 @@ const generatedAtLabel = computed(() => {
   const ts = new Date(props.generatedAt).getTime()
   if (isNaN(ts)) return ''
   const elapsed = Math.max(0, Math.floor((now.value - ts) / 1000))
-  if (elapsed < 5)  return (lang as any).ssSpkJustNow
+  if (elapsed < 5) return (lang as any).ssSpkJustNow
   if (elapsed < 60) return formatTpl((lang as any).ssSpkSecondsAgoTpl, { n: elapsed })
   return formatTpl((lang as any).ssSpkMinutesAgoTpl, { n: Math.floor(elapsed / 60) })
 })