feat: semi-finalist tracker dashboard, account reminders, search + UX fixes

- Add getSemiFinalistStats query with per-category/per-award breakdown
- Add sendAccountReminders mutation with invite token generation and dedup
- Add SemiFinalistTracker dashboard widget with progress bars and remind buttons
- Add ACCOUNT_REMINDER email template
- Extend project search to match team member name/email (7 locations)
- Fix Passed count deduplication: count distinct projects, not round-state rows
- Fix role switcher: visible pills above user section, auto-refresh session on mount

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

src/lib/email.ts

@@ -1959,6 +1959,32 @@ export function getEmailPreviewHtml(subject: string, body: string): string {
   return getEmailWrapper(content)
 }
 
+/**
+ * Generate "Account Setup Reminder" email template
+ * Sent to semi-finalist team members who haven't set up their account yet.
+ */
+export function getAccountReminderTemplate(
+  name: string,
+  projectName: string,
+  accountUrl: string,
+): EmailTemplate {
+  const greeting = name ? `Hello ${name},` : 'Hello,'
+
+  const content = `
+    ${sectionTitle(greeting)}
+    ${paragraph(`Your project <strong>"${projectName}"</strong> has been selected as a semi-finalist in the Monaco Ocean Protection Challenge.`)}
+    ${infoBox('Please set up your account to access your applicant dashboard and stay up to date with the competition.', 'warning')}
+    ${ctaButton(accountUrl, 'Set Up Your Account')}
+    ${paragraph('If you have any questions, please contact the MOPC team.')}
+  `
+
+  return {
+    subject: `Action Required: Set up your MOPC account — "${projectName}"`,
+    html: getEmailWrapper(content),
+    text: `${greeting}\n\nYour project "${projectName}" has been selected as a semi-finalist in the Monaco Ocean Protection Challenge.\n\nPlease set up your account to access your applicant dashboard.\n\nSet up your account: ${getBaseUrl()}${accountUrl}\n\nIf you have any questions, please contact the MOPC team.\n\n---\nMonaco Ocean Protection Challenge\nTogether for a healthier ocean.`,
+  }
+}
+
 /**
  * Template registry mapping notification types to template generators
  */
@@ -2137,6 +2163,13 @@ export const NOTIFICATION_EMAIL_TEMPLATES: Record<string, TemplateGenerator> = {
       ctx.metadata?.accountUrl as string | undefined,
     ),
 
+  ACCOUNT_REMINDER: (ctx) =>
+    getAccountReminderTemplate(
+      ctx.name || '',
+      (ctx.metadata?.projectName as string) || 'Your Project',
+      (ctx.metadata?.accountUrl as string) || '/accept-invite',
+    ),
+
   // Admin templates
   NEW_APPLICATION: (ctx) =>
     getNewApplicationTemplate(