Implementa registo e conferencia de pagamentos externos

database/migrations/2026_10_28_000012_create_external_payments.php

@@ -0,0 +1,38 @@
+<?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('external_payments', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('tenant_id')->constrained()->restrictOnDelete();
+            $table->foreignId('invoice_id')->constrained()->restrictOnDelete();
+            $table->foreignId('supplier_bank_detail_id')->constrained()->restrictOnDelete();
+            $table->foreignId('created_by')->constrained('users')->restrictOnDelete();
+            $table->foreignId('reviewed_by')->nullable()->constrained('users')->restrictOnDelete();
+            $table->string('status')->default('pending');
+            $table->bigInteger('amount_minor');
+            $table->string('currency', 3);
+            $table->date('paid_on');
+            $table->text('external_reference');
+            $table->string('reference_hash', 64);
+            $table->string('payload_hash', 64);
+            $table->text('evidence_reference');
+            $table->text('bank_snapshot');
+            $table->text('review_reason')->nullable();
+            $table->timestamp('reviewed_at')->nullable();
+            $table->timestamps();
+            $table->unique(['tenant_id', 'reference_hash']);
+        });
+    }
+
+    public function down(): void
+    {
+        throw new LogicException('Preservar registos e conferências de pagamentos externos.');
+    }
+};