refactor: move admin route into middleware group and harden authorization

Move the admin panel route into the existing auth middleware group and
replace client-side redirects with server-side abort calls in the
Livewire component. Extract shared authorization logic into reusable
private methods.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tests/Feature/AdminAccessAuthorizationTest.php

@@ -0,0 +1,118 @@
+<?php
+
+use App\Livewire\Admin\Index as AdminIndex;
+use App\Models\Team;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Livewire\Livewire;
+
+uses(RefreshDatabase::class);
+
+test('unauthenticated user cannot access admin route', function () {
+    $response = $this->get('/admin');
+
+    $response->assertRedirect('/login');
+});
+
+test('authenticated non-root user gets 403 on admin page', function () {
+    $team = Team::factory()->create();
+    $user = User::factory()->create();
+    $team->members()->attach($user->id, ['role' => 'admin']);
+
+    $this->actingAs($user);
+    session(['currentTeam' => ['id' => $team->id]]);
+
+    Livewire::test(AdminIndex::class)
+        ->assertForbidden();
+});
+
+test('root user can access admin page in cloud mode', function () {
+    config()->set('constants.coolify.self_hosted', false);
+
+    $rootTeam = Team::find(0) ?? Team::factory()->create(['id' => 0]);
+    $rootUser = User::factory()->create(['id' => 0]);
+    $rootTeam->members()->attach($rootUser->id, ['role' => 'admin']);
+
+    $this->actingAs($rootUser);
+    session(['currentTeam' => ['id' => $rootTeam->id]]);
+
+    Livewire::test(AdminIndex::class)
+        ->assertOk();
+});
+
+test('root user gets 403 on admin page in self-hosted non-dev mode', function () {
+    config()->set('constants.coolify.self_hosted', true);
+    config()->set('app.env', 'production');
+
+    $rootTeam = Team::find(0) ?? Team::factory()->create(['id' => 0]);
+    $rootUser = User::factory()->create(['id' => 0]);
+    $rootTeam->members()->attach($rootUser->id, ['role' => 'admin']);
+
+    $this->actingAs($rootUser);
+    session(['currentTeam' => ['id' => $rootTeam->id]]);
+
+    Livewire::test(AdminIndex::class)
+        ->assertForbidden();
+});
+
+test('submitSearch requires admin authorization', function () {
+    $team = Team::factory()->create();
+    $user = User::factory()->create();
+    $team->members()->attach($user->id, ['role' => 'admin']);
+
+    $this->actingAs($user);
+    session(['currentTeam' => ['id' => $team->id]]);
+
+    Livewire::test(AdminIndex::class)
+        ->assertForbidden();
+});
+
+test('switchUser requires root user id 0', function () {
+    config()->set('constants.coolify.self_hosted', false);
+
+    $rootTeam = Team::find(0) ?? Team::factory()->create(['id' => 0]);
+    $rootUser = User::factory()->create(['id' => 0]);
+    $rootTeam->members()->attach($rootUser->id, ['role' => 'admin']);
+
+    $targetUser = User::factory()->create();
+    $targetTeam = Team::factory()->create();
+    $targetTeam->members()->attach($targetUser->id, ['role' => 'admin']);
+
+    $this->actingAs($rootUser);
+    session(['currentTeam' => ['id' => $rootTeam->id]]);
+
+    Livewire::test(AdminIndex::class)
+        ->assertOk()
+        ->call('switchUser', $targetUser->id)
+        ->assertRedirect();
+});
+
+test('switchUser rejects non-root user', function () {
+    config()->set('constants.coolify.self_hosted', false);
+
+    $team = Team::factory()->create();
+    $user = User::factory()->create();
+    $team->members()->attach($user->id, ['role' => 'admin']);
+
+    // Must set impersonating session to bypass mount() check
+    $this->actingAs($user);
+    session([
+        'currentTeam' => ['id' => $team->id],
+        'impersonating' => true,
+    ]);
+
+    Livewire::test(AdminIndex::class)
+        ->call('switchUser', 999)
+        ->assertForbidden();
+});
+
+test('admin route has auth middleware applied', function () {
+    $route = collect(app('router')->getRoutes()->getRoutesByName())
+        ->get('admin.index');
+
+    expect($route)->not->toBeNull();
+
+    $middleware = $route->gatherMiddleware();
+
+    expect($middleware)->toContain('auth');
+});