feat(web): 新增『虎牙设备绑定』管理页 — 一号一环境可视化

后端 (/huya/device-bindings):
- GET: 三方合并列表 (设备画像 + hydevice 指纹状态 + 账号表登录渠道)
  标识脱敏展示 (fingerprint/guid32 只留前12位)
- DELETE: 解绑 = 删除画像 + hydevice 状态 → 下次登录自动生成全新环境重新注册
前端:
- HuyaDeviceBindingsPage: 汇总卡片(绑定数/指纹状态/入库账号) + 明细表
  (机型/屏幕/CDID40/GUID32/Hebe/hydevice状态/登录渠道/最后登录) + 解绑重绑
- 路由 /huya/device-bindings + 菜单『设备绑定』(账号管理之下)

web/frontend/src/api/huya.ts

@@ -5,6 +5,7 @@ import type {
   AccountBulkTagRequest,
   HuyaAccountItem,
   HuyaAccountSummary,
+  HuyaDeviceBindingListResult,
   HuyaAutoRegisterBatch,
   HuyaAutoRegisterRequest,
   HuyaAutoRegisterRetryRequest,
@@ -42,6 +43,12 @@ export const huyaApi = {
   listAccountsPaged: (params: PageParams & { assigned_only?: boolean; tag?: string; has_cookie?: boolean; include_cookie?: boolean }) =>
     api.get<PaginatedResponse<HuyaAccountItem>, PaginatedResponse<HuyaAccountItem>>('/huya/accounts', { params }),
   accountsSummary: () => api.get<HuyaAccountSummary, HuyaAccountSummary>('/huya/accounts/summary'),
+  /** 设备绑定: 账号 ↔ 环境列表 (画像+指纹状态+账号表合并) */
+  listDeviceBindings: () =>
+    api.get<HuyaDeviceBindingListResult, HuyaDeviceBindingListResult>('/huya/device-bindings'),
+  /** 解绑: 删除设备画像与 hydevice 指纹状态, 下次登录自动生成全新环境 */
+  deleteDeviceBinding: (account: string) =>
+    api.delete<{ ok: boolean; message: string }, { ok: boolean; message: string }>(`/huya/device-bindings/${encodeURIComponent(account)}`),
   importCookies: (text: string, tag: string = '') =>
     api.post<HuyaCookieImportResult, HuyaCookieImportResult>('/huya/accounts/import-cookies', { text, tag }),
   importPasswordAccounts: (text: string, tag: string = '') =>