Add NAS file manager integration and all pending platform changes

- Installed p7h/nas-file-manager package via private VCS repo
- Published config/nas-file-manager.php with super_admin middleware restriction
- Added NAS env vars to .env.example
- Created admin/nas-storage page with connection info panel and file browser widget
- Added NAS Storage link to admin sidebar (super_admin only)
- Added SuperAdminController@nasStorage method and admin.nas-storage route
- Includes all accumulated branch changes: profile wall, 2FA, audit logs,
  settings panel, country/phone/timezone components, posts, slideshow,
  playlist shares, video downloads/shares, comment likes, notifications,
  social links, and more

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>

resources/views/auth/2fa-challenge.blade.php

@@ -0,0 +1,31 @@
+@extends('layouts.auth')
+
+@section('title', 'Two-Factor Authentication | ' . config('app.name'))
+
+@section('content')
+<div class="auth-card">
+    <h1 class="auth-title">Two-Factor Authentication</h1>
+    <p class="auth-subtitle">Enter the 6-digit code from your authenticator app</p>
+
+    @if($errors->any())
+        <div class="auth-error">
+            <i class="bi bi-exclamation-circle-fill"></i>
+            <span>{{ $errors->first() }}</span>
+        </div>
+    @endif
+
+    <form method="POST" action="{{ route('2fa.verify') }}">
+        @csrf
+
+        <div class="form-group">
+            <label class="form-label">Authentication Code</label>
+            <input type="text" name="code" class="form-input"
+                   inputmode="numeric" pattern="[0-9]*" maxlength="6"
+                   placeholder="000000" autofocus autocomplete="one-time-code"
+                   style="letter-spacing: 0.3em; font-size: 22px; text-align: center;">
+        </div>
+
+        <button type="submit" class="btn-primary">Verify</button>
+    </form>
+</div>
+@endsection