Fix all ESLint errors so CI passes on every branch

- Move nested components outside parent functions (GraphsTab, ClientDetailPage, NetworkServicesDHCPPage)
- Add eslint-disable comments for intentional setState-in-effect patterns (form sync in DNS, NTP, Wireless pages)
- Fix unescaped quote entities in JSX (SystemConfigTab, GlobalSearch, TopologyPage)
- Fix empty catch block in main.tsx
- Convert ternary-as-statement to if/else in RadiosTab
- Move Date.now() calls into useMemo in DashboardPage (react-hooks/purity)
- Fix DOM mutation in event handler in TerminalModal (react-hooks/immutability)
- Wrap ref assignment in useLayoutEffect in useSocket (react-hooks/refs)
- Update TypeScript devDependency version pin to match installed version

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

frontend/src/pages/DashboardPage.tsx

@@ -229,6 +229,12 @@ export default function DashboardPage() {
     ts: new Date(p.time).getTime(),
   }));
 
+  const chartDomain = useMemo<[number, number]>(
+    () => [Date.now() - 24 * 60 * 60 * 1000, Date.now()],
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+    [clientsOverTime]
+  );
+
   const { data: topClients = [] } = useQuery({
     queryKey: ['top-clients'],
     queryFn: () => metricsApi.topClients(8).then((r) => r.data),
@@ -393,7 +399,7 @@ export default function DashboardPage() {
                   dataKey="ts"
                   type="number"
                   scale="time"
-                  domain={[Date.now() - 24 * 60 * 60 * 1000, Date.now()]}
+                  domain={chartDomain}
                   tick={{ fontSize: 11 }}
                   tickCount={7}
                   tickFormatter={(t) => format(new Date(t), 'HH:mm')}