Align console behavior with operator routing and image workflow expectations

Constraint: Must preserve current exchange-rate logic, same-group routing boundary, and temporary image-file behavior while fixing UX-visible inconsistencies.
Rejected: Large frontend chunk refactor | introduced risky circular chunking and did not improve deliverability for this rollout.
Confidence: medium
Scope-risk: moderate
Directive: Keep channel failover constrained to the selected group and preserve Beijing-day semantics for user cache dashboard metrics.
Tested: go test ./controller ./model ./service ./common -count=1; npm run build; remote smoke on source deployment at http://38.76.218.56:18081/ plus /api/status and /api/image-studio/settings.
Not-tested: Browser-driven end-to-end verification of every console page interaction.

web/src/components/settings/personal/cards/NotificationSettings.jsx

@@ -409,10 +409,10 @@ const NotificationSettings = ({
                   }
                   placeholder={t('请输入预警额度')}
                   data={[
-                    { value: 100000, label: '0.2$' },
-                    { value: 500000, label: '1$' },
-                    { value: 1000000, label: '2$' },
-                    { value: 5000000, label: '10$' },
+                    { value: 100000, label: '0.2￥' },
+                    { value: 500000, label: '1￥' },
+                    { value: 1000000, label: '2￥' },
+                    { value: 5000000, label: '10￥' },
                   ]}
                   onChange={(val) => handleFormChange('warningThreshold', val)}
                   prefix={<IconBell />}
@@ -515,7 +515,7 @@ const NotificationSettings = ({
                               title: '额度预警通知',
                               content:
                                 '您的额度即将用尽，当前剩余额度为 {{value}}',
-                              values: ['$0.99'],
+                              values: ['￥0.99'],
                               timestamp: 1739950503,
                             }}
                             title='webhook'