feat: pgvector similar-incident retrieval + SimilarIncidentsPanel

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FFDuBhMKvoWjrWT3ZnGmmr

app/(protected)/hse/incidents/[id]/page.tsx

@@ -4,6 +4,7 @@ import { notFound } from 'next/navigation'
 import Link from 'next/link'
 import { createClient } from '@/lib/supabase/server'
 import { IncidentDetail, type Incident } from '@/components/incidents/incident-detail'
+import { SimilarIncidentsPanel } from '@/components/incidents/similar-incidents-panel'
 
 interface Props {
   params: Promise<{ id: string }>
@@ -94,6 +95,7 @@ export default async function HseIncidentDetailPage({ params }: Props) {
           </a>
         </div>
       )}
+      <SimilarIncidentsPanel incidentId={id} />
     </main>
   )
 }