fix(frontend): 为配额自动刷新加入 5 分钟冷却并优化 OAuth org 徽章显示

- 新增 quotaAutoRefreshCooldown 工具，按 provider 维度限制后台自动刷新频率，手动触发（刷新 token、变更 key）通过 ignoreCooldown 绕过
- OAuth org 徽章去除 org- 前缀后再缩略，避免 org:org-xx 的重复前缀，并缩小字号高度以适配紧凑布局

frontend/src/features/providers/utils/__tests__/quotaAutoRefreshCooldown.spec.ts

@@ -0,0 +1,52 @@
+import { afterEach, describe, expect, it } from 'vitest'
+
+import {
+  AUTO_QUOTA_REFRESH_COOLDOWN_SECONDS,
+  isProviderQuotaAutoRefreshCoolingDown,
+  markProviderQuotaAutoRefreshAttempt,
+  resetProviderQuotaAutoRefreshCooldownForTests,
+} from '../quotaAutoRefreshCooldown'
+
+describe('quota auto refresh cooldown', () => {
+  afterEach(() => {
+    resetProviderQuotaAutoRefreshCooldownForTests()
+  })
+
+  it('starts cooldown after recording an auto refresh attempt', () => {
+    markProviderQuotaAutoRefreshAttempt('provider-1', 1_000)
+
+    expect(isProviderQuotaAutoRefreshCoolingDown('provider-1', 1_000)).toBe(true)
+    expect(
+      isProviderQuotaAutoRefreshCoolingDown(
+        'provider-1',
+        1_000 + AUTO_QUOTA_REFRESH_COOLDOWN_SECONDS - 1,
+      ),
+    ).toBe(true)
+  })
+
+  it('expires cooldown after the configured window', () => {
+    markProviderQuotaAutoRefreshAttempt('provider-1', 1_000)
+
+    expect(
+      isProviderQuotaAutoRefreshCoolingDown(
+        'provider-1',
+        1_000 + AUTO_QUOTA_REFRESH_COOLDOWN_SECONDS,
+      ),
+    ).toBe(false)
+  })
+
+  it('tracks cooldown independently per provider', () => {
+    markProviderQuotaAutoRefreshAttempt('provider-1', 1_000)
+    markProviderQuotaAutoRefreshAttempt('provider-2', 1_200)
+
+    expect(isProviderQuotaAutoRefreshCoolingDown('provider-1', 1_301)).toBe(false)
+    expect(isProviderQuotaAutoRefreshCoolingDown('provider-2', 1_301)).toBe(true)
+  })
+
+  it('ignores empty provider ids', () => {
+    markProviderQuotaAutoRefreshAttempt('', 1_000)
+
+    expect(isProviderQuotaAutoRefreshCoolingDown('', 1_001)).toBe(false)
+    expect(isProviderQuotaAutoRefreshCoolingDown(null, 1_001)).toBe(false)
+  })
+})