feat(ticket): replace the after-sale flow with a general ticket system

The old 售后 flow was an order-refund appendage: tickets were hard-bound to an
order number, users could only file them from 「我的订单」against a paid order,
and the admin action bottomed out at 「标记订单已退款」. It could not carry
account questions or feature requests that have nothing to do with an order.

Replace it with a general ticket system modelled on 魔方财务云's idcsmart_ticket:
title + department + description are required, linking an order is optional
(user's own paid orders only). Add departments, custom statuses, preset replies
and internal admin notes as four configuration surfaces. Conversation history
moves off the ticket row's JSON log into dedicated ticket_reply rows, which
unlocks quoted replies. Front end gets a 工单中心 panel under 我的服务; back end
moves from 支付中心 → 售后服务 to users.php → 工单管理.

Per CLAUDE.md's rewrite-over-compatibility rule: drop the old table, build new
ones, delete the old code. No dual paths, no data migration. The upstream
plugin's upstream/downstream delivery and internal-ticket conversion are
deliberately left out — both are multi-provider platform concerns with no
meaning on a single WordPress site.

Data: order_aftersale becomes six aksrt_ticket* tables (ticket, ticket_reply,
ticket_status, ticket_type, ticket_prereply, ticket_note). SCHEMA_VERSION
2.6.0 -> 3.0.0. Status and department seeds are idempotent; the default status
「待接单」is flagged as non-editable.

Domain: new src/Ticket/ (13 files, all under 460 lines). Attachments reuse
UserController::rest_upload_comment_image with a ticket-specific permission
callback, mirroring the existing /report/upload-image route rather than
growing a second upload path.

Notifications go through AKSRT\Messages\Message::send() and deep-link to the
right surface; email/SMS stay out of scope since the theme's mail and SMS
stacks are separate implementations.

Refund gate opens up: marking an order refunded no longer requires an in-flight
ticket, only that the order is paid.

Also generalise a hardcoded special case in tools/audit-admin-contracts.php —
schema domain inference now reads the parent directory instead of matching
"PostList" by name, so new leaf schema files need no per-name exception.

Verification:
  php tools/audit-admin-contracts.php   exit 0, errors=0
  node --test (widget-system + admin)   664 pass / 0 fail
  php -l over all new/changed files     clean
  node --check over all JS              clean
  npm run build + build:public          clean

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

assets/css/routes/orders.css

@@ -108,14 +108,14 @@
   --detail-success: var(--modal-success);
 }
 
-/* 订单详情弹窗：与售后弹窗统一为 modal-mini 几何（400px）；标题区改用蓝色炫彩头，运行时不再渲染默认标题栏。 */
+/* 订单详情弹窗：modal-mini 几何（400px）；标题区改用蓝色炫彩头，运行时不再渲染默认标题栏。 */
 .aksrt-order-detail-modal:not(.aksrt-modal-runtime--bottom) .aksrt-modal-runtime__dialog {
   width: min(400px, calc(100vw - 32px));
   border-radius: var(--main-radius, 8px);
   background: var(--main-bg-color, #fff);
 }
 /* 滚动发生在 dialog 本体（modal-runtime 的 overflow:auto），内容超高时右缘会露出
-   滚动栏；与售后/申诉弹窗口径一致：完全隐藏滚动条（含细滚动条），滚动行为不变。 */
+   滚动栏；与申诉弹窗口径一致：完全隐藏滚动条（含细滚动条），滚动行为不变。 */
 .aksrt-order-detail-modal .aksrt-modal-runtime__dialog { -ms-overflow-style: none; scrollbar-width: none; }
 .aksrt-order-detail-modal .aksrt-modal-runtime__dialog::-webkit-scrollbar { display: none; }
 .aksrt-order-detail-modal .aksrt-modal-runtime__content { display: flex; flex-direction: column; gap: 18px; padding: 16px 18px 0; }
@@ -169,13 +169,13 @@
    按钮盒即整个底部区域；安全区留在 footer 底部，避免按钮文字沉入 Home 指示条。 */
 .aksrt-order-detail-modal .aksrt-order-detail__actions { position: sticky; bottom: 0; z-index: 2; margin: 0 -18px; padding: 0 0 env(safe-area-inset-bottom, 0); border-top: 1px solid var(--detail-line); background: var(--detail-surface); }
 .aksrt-order-detail-modal .aksrt-order-detail__actions.but-average.modal-buts { margin-top: 0; gap: 0; }
-/* 底部按钮观感与售后弹窗家族对齐（modal-runtime 同款平铺规则）：去胶囊底色/边框/圆角，
-   文字色区分主次；仅「关闭」单按钮时占满整行，即售后详细「我知道了」的呈现。
+/* 底部按钮观感与弹窗家族对齐（modal-runtime 同款平铺规则）：去胶囊底色/边框/圆角，
+   文字色区分主次；仅「关闭」单按钮时占满整行。
    分界线与悬停底色需排在 .c-blue 规则之后：主按钮同受 border:0 影响与主色覆盖，同名优先级看先后。 */
 .aksrt-order-detail-modal .aksrt-order-detail__actions.but-average.modal-buts > .but { min-height: 64px; border: 0; border-radius: 0; box-shadow: none; background: transparent; color: var(--modal-muted, #777); font-weight: 600; cursor: pointer; --this-bg: transparent; --this-border: transparent; --this-shadow: none; }
 .aksrt-order-detail-modal .aksrt-order-detail__actions.but-average.modal-buts > .but.c-blue { background: transparent; border: 0; color: var(--modal-primary, #f04494); }
 .aksrt-order-detail-modal .aksrt-order-detail__actions.but-average.modal-buts > .but + .but { border-left: 1px solid var(--detail-line); }
-/* 悬停反馈与售后弹窗家族同款：整块区域浅灰底 + 文字转主色（次级升主色、主按钮略加深）。 */
+/* 悬停反馈与弹窗家族同款：整块区域浅灰底 + 文字转主色（次级升主色、主按钮略加深）。 */
 .aksrt-order-detail-modal .aksrt-order-detail__actions.but-average.modal-buts > .but:hover { opacity: 1; background: color-mix(in srgb, var(--modal-ink, #333333) 5%, transparent); color: var(--modal-primary, #f04494); }
 .aksrt-order-detail-modal .aksrt-order-detail__actions.but-average.modal-buts > .but.c-blue:hover { color: color-mix(in srgb, var(--modal-primary, #f04494) 82%, #000000); }
 .aksrt-order-detail-modal .aksrt-order-detail__actions.but-average.modal-buts > .but:only-child { grid-column: 1 / -1; }
@@ -184,12 +184,6 @@
 .aksrt-orders-page__extra-nav { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 12px; }
 .aksrt-orders-page__extra-link { padding: 6px 12px; border-radius: 999px; background: var(--surface-2, #f3f4f6); color: inherit; text-decoration: none; font-size: 13px; }
 .aksrt-orders-page__extra-link.is-active { background: var(--focus-color, var(--color-primary)); color: #fff; }
-.aksrt-as-list { display: grid; gap: 12px; }
-.aksrt-as-card { padding: 14px; border: 1px solid var(--main-border-color, #eee); border-radius: 10px; background: var(--main-bg-color, #fff); }
-.aksrt-as-card__head { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 6px; }
-.aksrt-as-card__status { margin-left: auto; color: var(--focus-color, #2f6df6); font-weight: 600; }
-.aksrt-as-timeline { margin: 10px 0 0; padding-left: 18px; color: var(--muted-2-color, #888); font-size: 12px; }
-.aksrt-as-card__actions { display: flex; gap: 8px; margin-top: 10px; }
 .aksrt-coupon-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; }
 .aksrt-coupon-card { padding: 12px; border: 1px dashed var(--focus-color, #2f6df6); border-radius: 10px; background: color-mix(in srgb, var(--focus-color, #2f6df6) 6%, #fff); }
 .aksrt-coupon-card__value { color: var(--focus-color, #2f6df6); font-size: 20px; font-weight: 700; }
@@ -200,16 +194,3 @@
 @media (max-width: 767px) { .uc-orders-panel__head { grid-template-columns: 1fr; gap: 17px; }.aksrt-orders-page__stats { max-width: none; }.aksrt-orders-page__search { flex-wrap: wrap; }.aksrt-orders-page__search input { min-width: 150px; }.aksrt-orders-page__search .btn-primary { margin-left: auto; }.aksrt-orders-page__filter-toggle { margin-left: auto; }.aksrt-orders-page__card-rail time { width: 100%; margin-left: 0; order: 3; }.aksrt-orders-page__card-main { grid-template-columns: 48px minmax(0, 1fr); }.aksrt-orders-page__card-img, .aksrt-orders-page__card-art { width: 48px; height: 48px; }.aksrt-orders-page__card-value { grid-column: 2; text-align: left; }.aksrt-orders-page__card-actions > :not(.aksrt-orders-page__countdown) { flex: 1 1 auto; }.aksrt-orders-page__countdown { width: 100%; }}
 html.dark .aksrt-orders-page__stat, html.dark .aksrt-orders-page__card { background: var(--surface-1, #1a1d24); } html.dark .aksrt-orders-page__card-rail, html.dark .aksrt-orders-page__filter-panel { background: var(--surface-2, #12151b); }
 
-/* ---- 售后记录卡片（订单详情弹窗） ---- */
-.aksrt-order-detail__after-sales { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
-.aksrt-order-detail__after-sale { --as-accent: var(--detail-muted); display: grid; gap: 10px; padding: 13px 14px; border: 1px solid var(--detail-line); border-left: 3px solid var(--as-accent); border-radius: 12px; background: var(--detail-surface); }
-.aksrt-order-detail__after-sale.is-pending { --as-accent: var(--detail-warning); }
-.aksrt-order-detail__after-sale.is-processing { --as-accent: var(--detail-primary); }
-.aksrt-order-detail__after-sale.is-approved, .aksrt-order-detail__after-sale.is-completed { --as-accent: var(--detail-success); }
-.aksrt-order-detail__after-sale.is-rejected, .aksrt-order-detail__after-sale.is-cancelled { --as-accent: var(--modal-danger, #ef4444); }
-.aksrt-order-detail__after-sale-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
-.aksrt-order-detail__after-sale-badge { padding: 3px 11px; border-radius: 999px; background: color-mix(in srgb, var(--as-accent) 12%, transparent); color: var(--as-accent); font-size: 12px; font-weight: 700; line-height: 1.5; }
-.aksrt-order-detail__after-sale-head time { color: var(--detail-muted); font-size: 11.5px; font-variant-numeric: tabular-nums; }
-.aksrt-order-detail__after-sale-reason { margin: 0; color: var(--detail-ink); font-size: 13px; line-height: 1.65; white-space: pre-wrap; word-break: break-word; }
-.aksrt-order-detail__after-sale-field { color: var(--detail-muted); }
-.aksrt-order-detail__after-sale-foot { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }