feat: Add CostCalculator module with CRUD functionality and frontend integration

- Created new module for CostCalculator with necessary routes and controllers.
- Implemented views for creating, editing, and displaying costs.
- Added form partials for cost input with validation.
- Integrated living status options in the form.
- Developed frontend logic for cost calculation steps with dynamic UI updates.
- Included necessary assets (JS and SCSS) for styling and functionality.
- Updated constants for living status options.
- Enhanced existing client-side cost calculator page with new features.

Modules/CostCalculator/app/Providers/EventServiceProvider.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace Modules\CostCalculator\Providers;
+
+use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;
+
+class EventServiceProvider extends ServiceProvider
+{
+    /**
+     * The event handler mappings for the application.
+     *
+     * @var array<string, array<int, string>>
+     */
+    protected $listen = [];
+
+    /**
+     * Indicates if events should be discovered.
+     *
+     * @var bool
+     */
+    protected static $shouldDiscoverEvents = true;
+
+    /**
+     * Configure the proper event listeners for email verification.
+     */
+    protected function configureEmailVerification(): void
+    {
+        //
+    }
+}