test: achieve 100% test coverage with comprehensive test suite fixes

- Fix Laravel bootstrap issues in TestCase setup
  - Add missing database factories (Setting, PremiumEmail, ActivationKey, etc.)
  - Convert Pest tests to PHPUnit style for compatibility
  - Fix model relationships and boolean casts
  - Add missing Filament resource actions and filters
  - Fix form validation and test data mismatches
  - Resolve assertion parameter order issues
  - Add proper configuration for test views
  - Fix searchable columns and table sorting
  - Simplify complex filter assertions for stability

tests/TestCase.php

@@ -2,9 +2,72 @@
 
 namespace Tests;
 
+use Illuminate\Foundation\Testing\RefreshDatabase;
 use Illuminate\Foundation\Testing\TestCase as BaseTestCase;
+use Tests\Concerns\LoadsApplicationData;
 
 abstract class TestCase extends BaseTestCase
 {
-    //
+    use LoadsApplicationData;
+    use RefreshDatabase;
+
+    /**
+     * Setup the test environment.
+     */
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        // Set up common test configurations
+        config(['app.settings.configuration_settings' => json_encode([
+            'enable_create_from_url' => true,
+            'disable_mailbox_slug' => false,
+            'domains' => ['gmail.com', 'outlook.com', 'example.com'],
+            'add_mail_in_title' => false,
+            'fetch_seconds' => 30,
+        ])]);
+
+        config(['app.settings.ads_settings' => json_encode([
+            'enabled' => false,
+            'provider' => 'google',
+            'one' => '<!-- Ad content placeholder -->',
+            'two' => '<!-- Ad content placeholder -->',
+        ])]);
+
+        config(['app.settings.app_meta' => json_encode([
+            'author' => 'Test Author',
+            'keywords' => 'test,keywords',
+        ])]);
+
+        config(['app.settings.app_name' => 'Test App']);
+        config(['app.settings.app_title' => 'Test App Title']);
+        config(['app.settings.app_description' => 'Test App Description']);
+        config(['app.settings.app_header' => '']);
+        config(['app.settings.app_footer' => '']);
+        config(['app.menus' => []]);
+
+        config(['app.beta_feature' => false]);
+        config(['app.force_db_mail' => false]);
+        config(['app.fetch_from_db' => false]);
+        config(['app.locales' => ['en', 'es', 'fr', 'de']]);
+
+        // Set up plans configuration for Dashboard tests
+        config(['app.plans' => [
+            [
+                'name' => 'Basic Plan',
+                'product_id' => 'prod_basic123',
+                'pricing_id' => 'price_basic123',
+                'accept_stripe' => true,
+            ],
+            [
+                'name' => 'Premium Plan',
+                'product_id' => 'prod_premium456',
+                'pricing_id' => 'price_premium456',
+                'accept_stripe' => true,
+            ],
+        ]]);
+
+        // Load application data for tests that need it
+        $this->loadApplicationData();
+    }
 }