feat: JKKP 6/7 PDF generation via pdf-lib, download from incident detail

Also excludes node_modules.nosync from vitest test discovery to fix pre-existing bleed.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FFDuBhMKvoWjrWT3ZnGmmr

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

@@ -18,6 +18,7 @@ export default async function HseIncidentDetailPage({ params }: Props) {
     .select(`
       id, reference_no, incident_type, description, severity, status,
       injury_involved, asset_involved, medical_status, lost_days,
+      is_fatality, is_serious_bodily_injury, is_dangerous_occurrence, is_occupational_disease,
       reported_at, closed_at,
       sites (id, name),
       zones (id, name),
@@ -69,6 +70,30 @@ export default async function HseIncidentDetailPage({ params }: Props) {
           </Link>
         </div>
       )}
+
+      {Boolean(
+        (incident as { is_fatality?: boolean }).is_fatality ||
+        (incident as { is_serious_bodily_injury?: boolean }).is_serious_bodily_injury ||
+        (incident as { is_dangerous_occurrence?: boolean }).is_dangerous_occurrence ||
+        ((incident as { lost_days?: number | null }).lost_days ?? 0) >= 4
+      ) && (
+        <div className="mt-4 flex gap-3">
+          <a
+            href={`/api/incidents/${id}/jkkp-pdf?form=jkkp6`}
+            target="_blank"
+            className="inline-block bg-gray-800 text-white rounded-lg px-4 py-2 text-sm font-semibold hover:bg-gray-900"
+          >
+            Download JKKP 6 (PDF)
+          </a>
+          <a
+            href={`/api/incidents/${id}/jkkp-pdf?form=jkkp7`}
+            target="_blank"
+            className="inline-block bg-gray-600 text-white rounded-lg px-4 py-2 text-sm font-semibold hover:bg-gray-700"
+          >
+            Download JKKP 7 (PDF)
+          </a>
+        </div>
+      )}
     </main>
   )
 }