fix: show RDG flap badge on 302 and 303 events in SAC UI (0.20.5)

Seaca surfaced flap via Problems; the web UI only flagged 303 in DB and had
no visible label. Resolve flap pairs at read time and show badge plus qwinsta
on both sides of 302→303.

frontend/src/views/DashboardView.vue

@@ -281,12 +281,15 @@
 
           <td :class="'sev-' + e.severity">{{ e.severity }}</td>
 
-          <td>{{ e.title }}</td>
+          <td>
+            <RdgFlapBadge v-if="hasRdgFlapUi(e)" :event="e" />
+            {{ e.title }}
+          </td>
 
           <td class="dash-actions">
 
             <button
-              v-if="e.rdg_flap"
+              v-if="rdgFlapQwinstaEventId(e)"
               type="button"
               class="secondary dash-qwinsta-btn"
               :disabled="qwinstaLoadingId === e.id"
@@ -333,10 +336,12 @@ import {
   type DashboardSummary,
   type EventSummary,
 } from "../api";
+import RdgFlapBadge from "../components/RdgFlapBadge.vue";
 import RdgQwinstaModal from "../components/RdgQwinstaModal.vue";
 import { useRdgQwinsta } from "../composables/useRdgQwinsta";
 import { useSacVersion } from "../composables/useSacVersion";
 import { formatServerName } from "../utils/hostDisplay";
+import { hasRdgFlapUi, rdgFlapQwinstaEventId } from "../utils/rdgFlap";
 
 const { appName, appVersion } = useSacVersion();
 const { qwinstaLoadingId, qwinstaModal, closeQwinstaModal, runQwinsta, runLogoff } = useRdgQwinsta();