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/RouteServiceProvider.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace Modules\CostCalculator\Providers;
+
+use Illuminate\Support\Facades\Route;
+use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;
+
+class RouteServiceProvider extends ServiceProvider
+{
+    protected string $name = 'CostCalculator';
+
+    /**
+     * Called before routes are registered.
+     *
+     * Register any model bindings or pattern based filters.
+     */
+    public function boot(): void
+    {
+        parent::boot();
+    }
+
+    /**
+     * Define the routes for the application.
+     */
+    public function map(): void
+    {
+        $this->mapApiRoutes();
+        $this->mapWebRoutes();
+    }
+
+    /**
+     * Define the "web" routes for the application.
+     *
+     * These routes all receive session state, CSRF protection, etc.
+     */
+    protected function mapWebRoutes(): void
+    {
+        Route::middleware('web')->group(module_path($this->name, '/routes/web.php'));
+    }
+
+    /**
+     * Define the "api" routes for the application.
+     *
+     * These routes are typically stateless.
+     */
+    protected function mapApiRoutes(): void
+    {
+        Route::middleware('api')->prefix('api')->name('api.')->group(module_path($this->name, '/routes/api.php'));
+    }
+}