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/routes/web.php

@@ -0,0 +1,19 @@
+<?php
+
+use Illuminate\Support\Facades\Route;
+use Modules\CostCalculator\Http\Controllers\CostCalculatorController;
+
+/*
+|--------------------------------------------------------------------------
+| Web Routes
+|--------------------------------------------------------------------------
+|
+| Here is where you can register web routes for your application. These
+| routes are loaded by the RouteServiceProvider within a group which
+| contains the "web" middleware group. Now create something great!
+|
+*/
+
+Route::group([], function () {
+    Route::resource('costcalculator', CostCalculatorController::class)->names('costcalculator');
+});