refactor observers, fix policy, add feature tests

tests/TestCase.php

@@ -3,8 +3,16 @@
 namespace Tests;
 
 use Illuminate\Foundation\Testing\TestCase as BaseTestCase;
+use Spatie\Permission\Models\Role;
 
 abstract class TestCase extends BaseTestCase
 {
-    //
+    protected function setUp(): void
+    {
+        parent::setUp();
+        // Seed roles yang dibutuhkan observer
+        foreach (['anggota', 'ketua', 'bendahara', 'pengurus', 'auditor', 'super_admin'] as $role) {
+            Role::firstOrCreate(['name' => $role, 'guard_name' => 'web']);
+        }
+    }
 }