Add 5-second auto-refresh for dashboard Activity feed

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/app/(admin)/admin/dashboard-content.tsx

@@ -121,6 +121,10 @@ export function DashboardContent({ editionId, sessionName }: DashboardContentPro
     { editionId, limit: 8 },
     { enabled: !!editionId, refetchInterval: 30_000 }
   )
+  const { data: liveActivity } = trpc.dashboard.getRecentActivity.useQuery(
+    { limit: 8 },
+    { enabled: !!editionId, refetchInterval: 5_000 }
+  )
 
   if (isLoading) {
     return <DashboardSkeleton />
@@ -268,7 +272,7 @@ export function DashboardContent({ editionId, sessionName }: DashboardContentPro
           </AnimatedCard>
 
           <AnimatedCard index={6}>
-            <ActivityFeed activity={recentActivity} />
+            <ActivityFeed activity={liveActivity ?? recentActivity} />
           </AnimatedCard>
         </div>
       </div>

src/server/routers/dashboard.ts

@@ -553,4 +553,22 @@ export const dashboardRouter = router({
 
       return evaluations
     }),
+
+  getRecentActivity: adminProcedure
+    .input(z.object({ limit: z.number().int().min(1).max(20).optional() }))
+    .query(async ({ ctx, input }) => {
+      const sevenDaysAgo = new Date(Date.now() - 7 * 24 * 60 * 60 * 1000)
+      return ctx.prisma.auditLog.findMany({
+        where: { timestamp: { gte: sevenDaysAgo } },
+        orderBy: { timestamp: 'desc' },
+        take: input.limit ?? 8,
+        select: {
+          id: true,
+          action: true,
+          entityType: true,
+          timestamp: true,
+          user: { select: { name: true } },
+        },
+      })
+    }),
 })