feat: country flag display in remaining app pages (mentor, jury, admin, applicant)

Extends CountryDisplay component usage to all remaining pages that showed
raw country codes: mentor dashboard/projects, jury competitions/awards,
admin awards/project detail, applicant team, and project-list-compact.

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

src/app/(admin)/admin/projects/[id]/page.tsx

@@ -79,6 +79,7 @@ import {
 import { toast } from 'sonner'
 import { formatDateOnly } from '@/lib/utils'
 import { getCountryName, getCountryFlag } from '@/lib/countries'
+import { CountryDisplay } from '@/components/shared/country-display'
 
 interface PageProps {
   params: Promise<{ id: string }>
@@ -373,7 +374,7 @@ function ProjectDetailContent({ projectId }: { projectId: string }) {
                 <MapPin className="h-4 w-4 text-muted-foreground mt-0.5" />
                 <div>
                   <p className="text-sm font-medium text-muted-foreground">Location</p>
-                  <p className="text-sm">{project.geographicZone || project.country}</p>
+                  <p className="text-sm">{project.geographicZone}{project.geographicZone && project.country ? ', ' : ''}{project.country ? <CountryDisplay country={project.country} /> : null}</p>
                 </div>
               </div>
             )}