Add Larastan level 7 analysis

database/migrations/2025_07_08_185355_add_type_to_skills_table.php

@@ -9,14 +9,14 @@ return new class extends Migration
     /**
      * Run the migrations.
      */
-    public function up()
+    public function up(): void
     {
         Schema::table('skills', function (Blueprint $table) {
             $table->string('type')->default('rating')->after('id');
         });
     }
 
-    public function down()
+    public function down(): void
     {
         Schema::table('skills', function (Blueprint $table) {
             $table->dropColumn('type');