feat(db): phase 4 group 6 — server component pages to Drizzle

Converts all 18 server component page files from Supabase client queries
to Drizzle ORM using asAdmin. Adds getSession() + redirect to the three
pages (hse/incidents, hse/incidents/[id], hse/dashboard) that lacked it.
Maps snake_case component prop shapes explicitly where required.

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

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

@@ -2,8 +2,10 @@ export const dynamic = 'force-dynamic'
 
 import { notFound, redirect } from 'next/navigation'
 import Link from 'next/link'
-import { createClient } from '@/lib/supabase/server'
+import { asAdmin } from '@/lib/db/with-user'
 import { getSession } from '@/lib/auth/get-session'
+import { incidents } from '@/lib/db/schema'
+import { eq } from 'drizzle-orm'
 import { TriageForm } from '@/components/incidents/triage-form'
 
 interface Props {
@@ -16,13 +18,17 @@ export default async function TriagePage({ params }: Props) {
   if (!session) redirect(`/login?redirect=/hse/incidents/${id}/triage`)
   if (!['hse', 'admin'].includes(session.role)) redirect('/hse/incidents')
 
-  const supabase = await createClient()
-
-  const { data: incident } = await supabase
-    .from('incidents')
-    .select('id, reference_no, incident_type, status, severity')
-    .eq('id', id)
-    .single()
+  const [incident] = await asAdmin(db =>
+    db.select({
+      id: incidents.id,
+      referenceNo: incidents.referenceNo,
+      status: incidents.status,
+      severity: incidents.severity,
+    })
+    .from(incidents)
+    .where(eq(incidents.id, id))
+    .limit(1)
+  )
 
   if (!incident) notFound()
   if (incident.status !== 'reported') redirect(`/hse/incidents/${id}`)
@@ -33,10 +39,10 @@ export default async function TriagePage({ params }: Props) {
         ← Back to incident
       </Link>
       <h1 className="text-xl font-bold text-gray-900 mb-1">Triage Incident</h1>
-      <p className="text-sm text-gray-500 mb-6">{incident.reference_no ?? id}</p>
+      <p className="text-sm text-gray-500 mb-6">{incident.referenceNo ?? id}</p>
       <TriageForm
         incidentId={id}
-        currentSeverity={(incident as { severity: number | null }).severity}
+        currentSeverity={incident.severity}
       />
     </main>
   )