Implementa regras de investimento por empresa com dupla aprovacao

database/migrations/2026_10_28_000014_create_investment_policies.php

@@ -0,0 +1,47 @@
+<?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('investment_policies', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('tenant_id')->constrained()->restrictOnDelete();
+            $table->foreignId('created_by')->constrained('users')->restrictOnDelete();
+            $table->unsignedInteger('revision');
+            $table->string('status')->default('pending');
+            $table->string('mode');
+            $table->string('scope');
+            $table->string('currency', 3);
+            $table->bigInteger('ceiling_minor');
+            $table->boolean('includes_tax');
+            $table->date('valid_from');
+            $table->date('valid_until');
+            $table->text('reason');
+            $table->timestamp('decided_at')->nullable();
+            $table->timestamps();
+            $table->unique(['tenant_id', 'revision']);
+        });
+        Schema::create('investment_policy_reviews', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('tenant_id')->constrained()->restrictOnDelete();
+            $table->foreignId('investment_policy_id')->constrained()->restrictOnDelete();
+            $table->foreignId('reviewed_by')->constrained('users')->restrictOnDelete();
+            $table->string('decision');
+            $table->text('reason');
+            $table->timestamp('created_at');
+            $table->unique(['investment_policy_id', 'reviewed_by']);
+        });
+        Schema::table('budgets', fn (Blueprint $table) => $table->string('kind')->default('operating'));
+        Schema::table('purchase_awards', fn (Blueprint $table) => $table->json('investment_snapshot')->nullable());
+    }
+
+    public function down(): void
+    {
+        throw new LogicException('Preservar regras e decisões de investimento.');
+    }
+};