fix(auth): let OAuth-only users enable 2FA without a password confirmation

Users with a linked OAuth identity or no password cannot confirm a
password they do not know. The password.confirm middleware now follows
User::requiresPasswordConfirmation(), like destructive actions.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/Http/Kernel.php

@@ -17,6 +17,7 @@ use App\Http\Middleware\EnsureTeamMcpEnabled;
 use App\Http\Middleware\EnsureTokenBelongsToCurrentTeamMember;
 use App\Http\Middleware\PreventRequestsDuringMaintenance;
 use App\Http\Middleware\RedirectIfAuthenticated;
+use App\Http\Middleware\RequirePassword;
 use App\Http\Middleware\TrimStrings;
 use App\Http\Middleware\TrustProxies;
 use App\Http\Middleware\ValidateSignature;
@@ -24,7 +25,6 @@ use App\Http\Middleware\VerifyCsrfToken;
 use Illuminate\Auth\Middleware\AuthenticateWithBasicAuth;
 use Illuminate\Auth\Middleware\Authorize;
 use Illuminate\Auth\Middleware\EnsureEmailIsVerified;
-use Illuminate\Auth\Middleware\RequirePassword;
 use Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse;
 use Illuminate\Foundation\Http\Kernel as HttpKernel;
 use Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull;