fix(web/sla): violator link points to /sessions/{id} not /session/{tenant}/{id}

The violator table on /sla linked to /session/${tenantId}/${sessionId},
which 404s — the canonical route is /sessions/[sessionId] (single
segment, plural). Same convention as /diagnosis, /admin and the
inspector. Restores navigation and makes sla_violator_opened actually
fire.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/Web/autopilot-monitor-web/app/sla/page.tsx

@@ -452,7 +452,7 @@ export default function SlaPage() {
                           <tr key={v.sessionId} className="hover:bg-gray-50 dark:hover:bg-gray-750">
                             <td className="px-6 py-4 whitespace-nowrap">
                               <Link
-                                href={`/session/${v.tenantId}/${v.sessionId}`}
+                                href={`/sessions/${v.sessionId}`}
                                 onClick={() => trackEvent('sla_violator_opened', {
                                   sessionId: v.sessionId,
                                   tenantId: v.tenantId,