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]>

app/Http/Middleware/TrustProxies.php

@@ -12,7 +12,7 @@ class TrustProxies extends Middleware
      *
      * @var array<int, string>|string|null
      */
-    protected $proxies;
+    protected $proxies = '*';
 
     /**
      * The headers that should be used to detect proxies.

app/Http/Middleware/VerifyCsrfToken.php

@@ -12,6 +12,8 @@ class VerifyCsrfToken extends Middleware
      * @var array<int, string>
      */
     protected $except = [
-        //
+        'videos/*/share',
+        'playlists/*/share',
+        'videos/*/slideshow/generate',
     ];
 }