feat(admin): migrate admin UI to Vue3

admin-frontend/src/utils/datetime.js

@@ -0,0 +1,17 @@
+export function parseSqliteDateTime(value) {
+  if (!value) return null
+  if (value instanceof Date) return value
+
+  const str = String(value)
+  // "YYYY-MM-DD HH:mm:ss" -> "YYYY-MM-DDTHH:mm:ss"
+  const iso = str.includes('T') ? str : str.replace(' ', 'T')
+  const date = new Date(iso)
+  if (Number.isNaN(date.getTime())) return null
+  return date
+}
+
+export function formatDateTime(value) {
+  if (!value) return '-'
+  return String(value)
+}
+

admin-frontend/src/utils/password.js

@@ -0,0 +1,13 @@
+export function validatePasswordStrength(password) {
+  const value = String(password || '')
+  if (!value) return { ok: false, message: '密码不能为空' }
+  if (value.length < 8) return { ok: false, message: '密码长度不能少于8个字符' }
+  if (value.length > 128) return { ok: false, message: '密码长度不能超过128个字符' }
+
+  const hasLetter = /[a-zA-Z]/.test(value)
+  const hasDigit = /\d/.test(value)
+  if (!hasLetter || !hasDigit) return { ok: false, message: '密码必须包含字母和数字' }
+
+  return { ok: true, message: '' }
+}
+