fix(a11y): silence live stats and make Select tags removable for screen readers

Ant Design's Spin wraps its content in aria-live="polite", so every
WebSocket tick on the dashboard, inbounds, clients and nodes pages was
announced, and only the changed number was read, with no label.
Pass aria-live="off" on every Spin that wraps content; aria-busy still
signals loading. Each vital tile is now a group named by its metric,
so "47.2 %" is read as CPU.

rc-select renders each tag's remove "x" as an aria-hidden span with no
tabIndex, so screen-reader users could only Backspace the last value
away, never remove one SNI or inbound from the middle.
selectTagRender swaps in a real button named "Remove <value>" and
moves focus to the next tag after removal. It is applied to every
tags/multiple Select. maxTagCount="responsive" is dropped because it
hid selected inbounds behind "+N", where no screen reader could reach
them.

Two oxlint rules (antd-a11y/spin-content-not-live and
antd-a11y/select-tag-remove) keep new code from regressing either fix.

frontend/src/pages/settings/SubscriptionFormatsTab.tsx

@@ -13,7 +13,7 @@ import {
 import type { AllSetting } from '@/models/setting';
 import { onNumber } from '@/utils/onNumber';
 import { SettingListItem } from '@/components/ui';
-import { GoRegexInput } from '@/components/form';
+import { GoRegexInput, selectTagRender } from '@/components/form';
 import { useMediaQuery } from '@/hooks/useMediaQuery';
 import { catTabLabel } from './catTabLabel';
 import { sanitizePath, normalizePath } from './uriPath';
@@ -418,6 +418,7 @@ export default function SubscriptionFormatsTab({
                   <SettingListItem paddings="small" title={<>{t('pages.settings.direct')} IPs</>}>
                     <Select
                       mode="tags"
+                      tagRender={selectTagRender}
                       value={ruleValues('direct', 'ip')}
                       style={{ width: '100%' }}
                       onChange={(v) => setRuleValues('direct', 'ip', DEFAULT_DIRECT_RULES[1], v)}
@@ -434,6 +435,7 @@ export default function SubscriptionFormatsTab({
                   >
                     <Select
                       mode="tags"
+                      tagRender={selectTagRender}
                       value={ruleValues('direct', 'domain')}
                       style={{ width: '100%' }}
                       onChange={(v) =>
@@ -467,6 +469,7 @@ export default function SubscriptionFormatsTab({
                   <SettingListItem paddings="small" title={t('pages.xray.blockdomains')}>
                     <Select
                       mode="tags"
+                      tagRender={selectTagRender}
                       value={ruleValues('block', 'domain')}
                       style={{ width: '100%' }}
                       onChange={(v) => setRuleValues('block', 'domain', DEFAULT_BLOCK_RULES[0], v)}
@@ -476,6 +479,7 @@ export default function SubscriptionFormatsTab({
                   <SettingListItem paddings="small" title={t('pages.xray.blockips')}>
                     <Select
                       mode="tags"
+                      tagRender={selectTagRender}
                       value={ruleValues('block', 'ip')}
                       style={{ width: '100%' }}
                       onChange={(v) => setRuleValues('block', 'ip', BLOCK_IP_RULE, v)}