feat(admin): redesign withdrawal review page and drop dead withdrawal code

- Split PayWithdrawals into shell + PayWithdrawalsList flat sibling trait
- Add process/policy callout, open/paid/fee stats, status views with counts
- Filter by source and payout method; reset keeps the status view
- Show net payout with gross/fee breakdown, copyable payee, note column
- Replace inline select form with per-row actions and a confirm dialog;
  reject requires a reason; double-submit guard; retry reuses the
  idempotency key; redirect back preserving filters and paging
- Withdrawal: add get_status_counts() and method filter; get_stats() now
  returns open_gross / paid_net / paid_fee
- Remove unused REST routes (/payment/withdrawals, /transition),
  admin_withdrawals(), update_status(), has_open_withdrawal(),
  count_open(), resolve_gross_amount()

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

assets/js/admin-withdrawals.js

@@ -0,0 +1,149 @@
+/** 提现审核：共享处理弹窗（开始处理 / 确认打款 / 拒绝）、复制收款信息、防重复提交。仅本页入队。 */
+(function () {
+  'use strict';
+
+  var root = document.querySelector('.aksrt-wd-page');
+  if (!root) return;
+
+  var dialog = root.querySelector('#aksrt-wd-dialog');
+  var form = dialog ? dialog.querySelector('[data-aksrt-wd-form]') : null;
+  var note = form ? form.querySelector('[data-aksrt-wd-note]') : null;
+  var toast = root.querySelector('[data-aksrt-wd-toast]');
+  var toastTimer;
+  var opener = null;
+
+  function notify(key) {
+    if (!toast) return;
+    clearTimeout(toastTimer);
+    toast.textContent = toast.getAttribute('data-' + key);
+    toast.classList.add('is-visible');
+    toastTimer = setTimeout(function () { toast.classList.remove('is-visible'); }, 3000);
+  }
+
+  function lockScroll() {
+    document.documentElement.classList.toggle('aksrt-wd-modal-open', !!(dialog && dialog.open));
+  }
+
+  /** data-mode 可列多个状态（空格分隔）：只显示与当前目标状态匹配的说明、标题与提交按钮。 */
+  function applyMode(mode) {
+    form.closest('dialog').querySelectorAll('[data-mode]').forEach(function (el) {
+      el.hidden = el.getAttribute('data-mode').split(' ').indexOf(mode) === -1;
+    });
+    if (note) note.required = mode === 'rejected';
+  }
+
+  function resetSubmits() {
+    delete form.dataset.submitting;
+    form.querySelectorAll('[data-aksrt-wd-submit]').forEach(function (button) {
+      button.disabled = false;
+      if (button.dataset.idleLabel) button.textContent = button.dataset.idleLabel;
+    });
+  }
+
+  function openFor(button) {
+    var mode = button.getAttribute('data-aksrt-wd-open');
+    ['id', 'nonce', 'key'].forEach(function (field) {
+      form.querySelector('[data-field="' + field + '"]').value = button.dataset[field] || '';
+    });
+    form.querySelector('[data-field="status"]').value = mode;
+    dialog.querySelectorAll('[data-summary]').forEach(function (dd) {
+      dd.textContent = button.dataset[dd.getAttribute('data-summary')] || '—';
+    });
+    if (note) note.value = '';
+    resetSubmits();
+    applyMode(mode);
+    opener = button;
+    dialog.showModal();
+    lockScroll();
+    if (mode === 'rejected' && note) note.focus();
+  }
+
+  if (dialog && form && typeof dialog.showModal === 'function') {
+    var startedOutside = false;
+
+    function outside(event) {
+      var rect = dialog.getBoundingClientRect();
+      return event.clientX < rect.left || event.clientX > rect.right || event.clientY < rect.top || event.clientY > rect.bottom;
+    }
+    function requestClose() {
+      if (!form.dataset.submitting) dialog.close();
+    }
+
+    root.addEventListener('click', function (event) {
+      var button = event.target.closest('[data-aksrt-wd-open]');
+      if (button) openFor(button);
+    });
+    dialog.querySelectorAll('[data-aksrt-wd-close]').forEach(function (button) {
+      button.addEventListener('click', requestClose);
+    });
+    dialog.addEventListener('pointerdown', function (event) {
+      startedOutside = event.target === dialog && outside(event);
+    });
+    dialog.addEventListener('click', function (event) {
+      if (startedOutside && event.target === dialog && outside(event)) requestClose();
+      startedOutside = false;
+    });
+    dialog.addEventListener('cancel', function (event) {
+      if (form.dataset.submitting) event.preventDefault();
+    });
+    dialog.addEventListener('close', function () {
+      lockScroll();
+      if (opener && opener.isConnected) opener.focus();
+      opener = null;
+    });
+
+    form.addEventListener('submit', function (event) {
+      if (form.dataset.submitting) {
+        event.preventDefault();
+        return;
+      }
+      if (note && note.required && note.value.trim() === '') {
+        event.preventDefault();
+        note.value = '';
+        note.reportValidity();
+        return;
+      }
+      form.dataset.submitting = '1';
+      var submit = form.querySelector('[data-aksrt-wd-submit]:not([hidden])');
+      if (submit) {
+        submit.dataset.idleLabel = submit.textContent;
+        submit.textContent = form.getAttribute('data-busy-label');
+        // 延后禁用：同步禁用 submit 按钮会让部分浏览器丢掉这次提交。
+        setTimeout(function () { submit.disabled = true; }, 0);
+      }
+    });
+
+    // bfcache 返回时恢复按钮，避免弹窗停在提交中状态。
+    window.addEventListener('pageshow', function (event) {
+      if (event.persisted) resetSubmits();
+    });
+  }
+
+  root.addEventListener('click', async function (event) {
+    var button = event.target.closest('[data-clipboard-text]');
+    if (!button) return;
+    var value = button.getAttribute('data-clipboard-text');
+    try {
+      if (navigator.clipboard && window.isSecureContext) {
+        await navigator.clipboard.writeText(value);
+      } else {
+        var input = document.createElement('textarea');
+        input.value = value;
+        input.className = 'screen-reader-text';
+        root.appendChild(input);
+        input.select();
+        var copied = false;
+        try {
+          copied = document.execCommand('copy');
+        } finally {
+          input.remove();
+          button.focus();
+        }
+        if (!copied) throw new Error('copy');
+      }
+      notify('copied');
+    } catch (error) {
+      notify('copy-failed');
+    }
+  });
+})();