fix migration

database/migrations/2026_05_18_102119_add_end_km_to_missions_table.php

@@ -23,7 +23,7 @@ return new class extends Migration
     public function down(): void
     {
         Schema::table('missions', function (Blueprint $table) {
-            $table->dropColumn('km');
+            $table->dropColumn('end_km');
         });
     }
 };