Merge pull request #726 from DaydreamCoding/feat/dual-mode-umq

feat(gateway): 双模式用户消息队列 — 串行队列 + 软性限速

frontend/src/i18n/locales/en.ts

@@ -1864,7 +1864,12 @@ export default {
           strategyHint: 'Tiered: gradually restrict when exceeded; Sticky Exempt: existing sessions unrestricted',
           stickyBuffer: 'Sticky Buffer',
           stickyBufferPlaceholder: 'Default: 20% of base RPM',
-          stickyBufferHint: 'Extra requests allowed for sticky sessions after exceeding base RPM. Leave empty to use default (20% of base RPM, min 1)'
+          stickyBufferHint: 'Extra requests allowed for sticky sessions after exceeding base RPM. Leave empty to use default (20% of base RPM, min 1)',
+          userMsgQueue: 'User Message Rate Control',
+          userMsgQueueHint: 'Rate-limit user messages to avoid triggering upstream RPM limits',
+          umqModeOff: 'Off',
+          umqModeThrottle: 'Throttle',
+          umqModeSerialize: 'Serialize',
         },
         tlsFingerprint: {
           label: 'TLS Fingerprint Simulation',