feat: forgot password flow, member page fixes, country name display

Password reset:
- /forgot-password page: enter email, receive reset link via email
- /reset-password?token=xxx page: set new password with validation
- user.requestPasswordReset: generates token, sends styled email
- user.resetPassword: validates token, hashes new password
- Does NOT trigger re-onboarding — only resets the password
- 30-minute token expiry, cleared after use
- Added passwordResetToken/passwordResetExpiresAt to User model

Member detail page fixes:
- Hide "Expertise & Capacity" card for applicants/audience roles
- Show country names with flag emojis instead of raw ISO codes
- Login "Forgot password?" now links to /forgot-password page

Project detail page:
- Team member details show full country names with flags

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

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

@@ -62,10 +62,10 @@ import {
   ThumbsDown,
   Globe,
   Building2,
-  Flag,
   FileText,
   FolderOpen,
 } from 'lucide-react'
+import { getCountryName, getCountryFlag } from '@/lib/countries'
 
 export default function MemberDetailPage() {
   const params = useParams()
@@ -266,19 +266,19 @@ export default function MemberDetailPage() {
             <div className="grid gap-4 sm:grid-cols-2">
               {user.nationality && (
                 <div className="flex items-start gap-2">
-                  <Flag className="h-4 w-4 mt-0.5 text-muted-foreground shrink-0" />
+                  <span className="text-lg mt-0.5 shrink-0" role="img">{getCountryFlag(user.nationality)}</span>
                   <div>
                     <p className="text-xs font-medium text-muted-foreground">Nationality</p>
-                    <p className="text-sm">{user.nationality}</p>
+                    <p className="text-sm">{getCountryName(user.nationality)}</p>
                   </div>
                 </div>
               )}
               {user.country && (
                 <div className="flex items-start gap-2">
-                  <Globe className="h-4 w-4 mt-0.5 text-muted-foreground shrink-0" />
+                  <span className="text-lg mt-0.5 shrink-0" role="img">{getCountryFlag(user.country)}</span>
                   <div>
                     <p className="text-xs font-medium text-muted-foreground">Country of Residence</p>
-                    <p className="text-sm">{user.country}</p>
+                    <p className="text-sm">{getCountryName(user.country)}</p>
                   </div>
                 </div>
               )}
@@ -447,7 +447,8 @@ export default function MemberDetailPage() {
           </CardContent>
         </Card>
 
-        {/* Expertise & Capacity */}
+        {/* Expertise & Capacity — only for jury/mentor/observer/admin roles */}
+        {!['APPLICANT', 'AUDIENCE'].includes(user.role) && (
         <Card>
           <CardHeader>
             <CardTitle className="flex items-center gap-2">
@@ -494,6 +495,7 @@ export default function MemberDetailPage() {
             )}
           </CardContent>
         </Card>
+        )}
       </div>
 
       {/* Mentor Assignments Section */}