UI/UX Polishing: CBT dashboard, sidebar tiers, landing pricing, and exam disclaimer

src/app/parent/dashboard/page.tsx

@@ -113,6 +113,7 @@ export default function ParentDashboard() {
           </h1>
           <p className="text-muted-foreground mt-1 font-medium">{t.subtitle} — {data?.student_name}</p>
         </div>
+        {/*
         <div className="flex items-center space-x-3">
           <Label htmlFor="lang-switch" className="font-bold text-muted-foreground">{lang === 'hi' ? 'English' : 'हिंदी'}</Label>
           <Switch 
@@ -121,6 +122,7 @@ export default function ParentDashboard() {
             onCheckedChange={(c) => setLang(c ? 'hi' : 'en')}
           />
         </div>
+        */}
       </header>
 
       {/* Metric Blocks */}