Implementa conferencia de facturas e consumo por empresa

database/migrations/2026_10_28_000010_create_invoices.php

@@ -0,0 +1,55 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('invoices', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('tenant_id')->constrained()->restrictOnDelete();
+            $table->foreignId('purchase_order_id')->constrained()->restrictOnDelete();
+            $table->foreignId('supplier_id')->constrained()->restrictOnDelete();
+            $table->foreignId('created_by')->constrained('users')->restrictOnDelete();
+            $table->foreignId('validated_by')->nullable()->constrained('users')->restrictOnDelete();
+            $table->string('number', 100);
+            $table->date('issued_on');
+            $table->string('status')->default('pending');
+            $table->bigInteger('subtotal_minor');
+            $table->bigInteger('tax_minor');
+            $table->bigInteger('total_minor');
+            $table->json('snapshot');
+            $table->timestamp('validated_at')->nullable();
+            $table->timestamps();
+            $table->unique(['tenant_id', 'supplier_id', 'number']);
+        });
+        Schema::create('invoice_items', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('tenant_id')->constrained()->restrictOnDelete();
+            $table->foreignId('invoice_id')->constrained()->restrictOnDelete();
+            $table->foreignId('purchase_order_item_id')->constrained()->restrictOnDelete();
+            $table->bigInteger('quantity_milli');
+            $table->bigInteger('subtotal_minor');
+            $table->bigInteger('tax_minor');
+            $table->json('snapshot');
+            $table->unique(['invoice_id', 'purchase_order_item_id']);
+        });
+        Schema::create('budget_consumptions', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('tenant_id')->constrained()->restrictOnDelete();
+            $table->foreignId('budget_id')->constrained()->restrictOnDelete();
+            $table->foreignId('invoice_id')->unique()->constrained()->restrictOnDelete();
+            $table->foreignId('created_by')->constrained('users')->restrictOnDelete();
+            $table->bigInteger('amount_minor');
+            $table->timestamp('created_at');
+        });
+    }
+
+    public function down(): void
+    {
+        throw new LogicException('Preservar facturas, conferências e consumo.');
+    }
+};