fix(frontend): refine token refresh controls

apps/frontend/src/views/dashboard-license.test.ts

@@ -0,0 +1,67 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+import type { TokenStatus } from '@/api'
+import {
+  canRefreshAuthorization,
+  formatAuthorizationExpiryTooltip,
+  formatRemainingDays,
+} from './dashboard-license.ts'
+
+test('formats authorization expiry tooltip with concrete expiration time', () => {
+  const token: TokenStatus = {
+    is_valid: true,
+    jwt_exp: '',
+    expires_at: Date.UTC(2026, 4, 6, 16, 30, 12) / 1000,
+    days_until_expiry: 0,
+    expiring_soon: true,
+  }
+
+  assert.equal(
+    formatAuthorizationExpiryTooltip(token, 'zh-CN', 'UTC'),
+    '过期时间：2026-05-06 16:30:12',
+  )
+})
+
+test('omits authorization expiry tooltip when expiration timestamp is missing', () => {
+  assert.equal(formatAuthorizationExpiryTooltip(null), null)
+  assert.equal(
+    formatAuthorizationExpiryTooltip({
+      is_valid: false,
+      jwt_exp: '',
+      expires_at: null,
+      days_until_expiry: null,
+      expiring_soon: false,
+    }),
+    null,
+  )
+})
+
+test('allows QR refresh only for expired or invalid authorization', () => {
+  assert.equal(canRefreshAuthorization(null), false)
+  assert.equal(
+    canRefreshAuthorization({
+      is_valid: true,
+      jwt_exp: '',
+      expires_at: 1_778_111_412,
+      days_until_expiry: 0,
+      expiring_soon: true,
+    }),
+    false,
+  )
+  assert.equal(
+    canRefreshAuthorization({
+      is_valid: false,
+      jwt_exp: '',
+      expires_at: null,
+      days_until_expiry: null,
+      expiring_soon: false,
+    }),
+    true,
+  )
+})
+
+test('formats remaining days label consistently', () => {
+  assert.equal(formatRemainingDays(null), '未知')
+  assert.equal(formatRemainingDays(0), '0 天')
+  assert.equal(formatRemainingDays(12), '12 天')
+})