fix: заменить Tailwind green/emerald классы на success из темы

Замена green-*/emerald-* на success-* в 8 файлах:
AdminPolicyEdit, AdminBroadcastDetail, AdminAuditLog, ButtonsTab,
VerifyEmail, BackgroundEditor, AdminPolicies, AdminUpdates

src/components/admin/BackgroundEditor.tsx

@@ -365,7 +365,7 @@ export function BackgroundEditor() {
           className={cn(
             'w-full rounded-xl py-3 text-sm font-medium transition-colors',
             saveStatus === 'saved'
-              ? 'bg-green-500/20 text-green-400'
+              ? 'bg-success-500/20 text-success-400'
               : 'bg-accent-500 text-white hover:bg-accent-600 disabled:opacity-50',
           )}
         >

src/components/admin/ButtonsTab.tsx

@@ -17,7 +17,7 @@ type StyleValue = 'primary' | 'success' | 'danger' | 'default';
 const STYLE_OPTIONS: { value: StyleValue; colorClass: string }[] = [
   { value: 'default', colorClass: 'bg-dark-500' },
   { value: 'primary', colorClass: 'bg-blue-500' },
-  { value: 'success', colorClass: 'bg-green-500' },
+  { value: 'success', colorClass: 'bg-success-500' },
   { value: 'danger', colorClass: 'bg-red-500' },
 ];
 
@@ -222,7 +222,7 @@ export function ButtonsTab() {
                       cfg.style === 'default'
                         ? 'bg-dark-600 text-dark-300'
                         : cfg.style === 'success'
-                          ? 'bg-green-500 text-white'
+                          ? 'bg-success-500 text-white'
                           : cfg.style === 'danger'
                             ? 'bg-red-500 text-white'
                             : 'bg-blue-500 text-white'