Add Calculationpresets and Calculator modules with CRUD functionality, migrations, and UI components.

database/migrations/2026_01_24_102650_create_calculatorpresets_table.php

@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('calculatorpresets', function (Blueprint $table) {
+            $table->id();
+            $table->string('name');
+            $table->string('description')->nullable();
+            $table->decimal('price_kwh', 10, 2);
+            $table->decimal('factor_printer', 10, 2);
+            $table->decimal('factor_maintenance', 10, 2);
+            $table->decimal('factor_price', 10, 2);
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('calculatorpresets');
+    }
+};