fix: portal 邀请函/支持函日期仅显示年月日

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

ry-vue3/src/views/portal/Invitation.vue

@@ -90,7 +90,13 @@ async function load() {
 }
 function onSearch() { page.pageNum = 1; load() }
 function onReset() { q.value = { projectNo: '', title: '' }; onSearch() }
-function fmt(t) { return t ? new Date(t).toLocaleString('zh-CN') : '' }
+// 只显示年月日, 不显示时分秒 (与 portal/Publicity.vue fmtDate 口径一致)
+function fmt(t) {
+  if (!t) return ''
+  const d = new Date(t)
+  const p = n => String(n).padStart(2, '0')
+  return `${d.getFullYear()}-${p(d.getMonth() + 1)}-${p(d.getDate())}`
+}
 
 const detailOpen = ref(false)
 const current = ref(null)

ry-vue3/src/views/portal/SupportLetter.vue

@@ -79,7 +79,13 @@ async function load() {
 }
 function onSearch() { page.pageNum = 1; load() }
 function onReset() { q.value = { projectNo: '', title: '' }; onSearch() }
-function fmt(t) { return t ? new Date(t).toLocaleString('zh-CN') : '' }
+// 只显示年月日, 不显示时分秒 (与 portal/Publicity.vue fmtDate 口径一致)
+function fmt(t) {
+  if (!t) return ''
+  const d = new Date(t)
+  const p = n => String(n).padStart(2, '0')
+  return `${d.getFullYear()}-${p(d.getMonth() + 1)}-${p(d.getDate())}`
+}
 
 const detailOpen = ref(false)
 const current = ref(null)