feat: triage panel — severity + DOSH checklist, transitions reported→triaged

Also excludes node_modules.nosync from tsconfig to fix pre-existing TS type check bleed.

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

app/api/incidents/[id]/triage/route.ts

@@ -0,0 +1,65 @@
+export const dynamic = 'force-dynamic'
+
+import { NextRequest, NextResponse } from 'next/server'
+import { createClient } from '@/lib/supabase/server'
+
+interface TriageBody {
+  severity: number
+  is_fatality: boolean
+  is_serious_bodily_injury: boolean
+  is_dangerous_occurrence: boolean
+  is_occupational_disease: boolean
+  triage_notes: string | null
+}
+
+export async function PATCH(
+  request: NextRequest,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  const { id } = await params
+  const supabase = await createClient()
+
+  const { data: { user }, error: authError } = await supabase.auth.getUser()
+  if (authError || !user) return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
+
+  const { data: profile } = await supabase
+    .from('users').select('role').eq('id', user.id).single()
+  if (!profile || profile.role !== 'hse')
+    return NextResponse.json({ error: 'Forbidden' }, { status: 403 })
+
+  const body: TriageBody = await request.json()
+  if (body.severity < 1 || body.severity > 5)
+    return NextResponse.json({ error: 'severity must be 1–5' }, { status: 422 })
+
+  const { data: incident } = await supabase
+    .from('incidents').select('status').eq('id', id).single()
+  if (!incident) return NextResponse.json({ error: 'Not found' }, { status: 404 })
+  if (incident.status !== 'reported')
+    return NextResponse.json({ error: 'Incident is not in reported status' }, { status: 409 })
+
+  const { error } = await supabase
+    .from('incidents')
+    .update({
+      severity: body.severity,
+      is_fatality: body.is_fatality,
+      is_serious_bodily_injury: body.is_serious_bodily_injury,
+      is_dangerous_occurrence: body.is_dangerous_occurrence,
+      is_occupational_disease: body.is_occupational_disease,
+      triage_notes: body.triage_notes ?? null,
+      triaged_by: user.id,
+      triaged_at: new Date().toISOString(),
+      status: 'triaged',
+    })
+    .eq('id', id)
+
+  if (error) return NextResponse.json({ error: 'Update failed' }, { status: 500 })
+
+  await supabase.rpc('write_audit_log', {
+    p_table_name: 'incidents',
+    p_record_id: id,
+    p_action: 'triage',
+    p_new_value: { severity: body.severity, status: 'triaged', triaged_by: user.id },
+  })
+
+  return NextResponse.json({ ok: true })
+}