feat(admin): truck report link + pre-fill form via ?truck_id=

Scanning truck QR opens /ims/report?truck_id=<id>, which pre-selects
incident_type=transport and the truck in the form. TruckManager shows
"Report link / QR target" per truck, mirroring zones.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CPf5Rc8QPx6V8KLEEgfKEQ

app/report/page.tsx

@@ -7,11 +7,11 @@ import { LanguageSwitcher } from '@/components/language-switcher'
 import { OfflineSync } from '@/components/incidents/offline-sync'
 
 interface Props {
-  searchParams: Promise<{ zone?: string }>
+  searchParams: Promise<{ zone?: string; truck_id?: string }>
 }
 
 export default async function ReportPage({ searchParams }: Props) {
-  const { zone } = await searchParams
+  const { zone, truck_id } = await searchParams
   const supabase = await createClient()
   const { data, error: authError } = await supabase.auth.getUser()
 
@@ -58,6 +58,7 @@ export default async function ReportPage({ searchParams }: Props) {
         zoneName={zoneName}
         siteName={siteName}
         trucks={(trucks ?? []) as Array<{ id: string; truck_no: string; carrier: string | null }>}
+        initialTruckId={truck_id ?? null}
       />
       <OfflineSync />
     </main>