feat: implement integration management with CRUD operations and routes for tenant integration

database/migrations/2026_07_03_000001_create_integrations_table.php

@@ -0,0 +1,30 @@
+<?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('integrations', function (Blueprint $table) {
+            $table->id();
+            $table->string('integration_code')->unique();
+            $table->string('name');
+            $table->json('integration_data_schema')->nullable();
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('integrations');
+    }
+};

database/migrations/2026_07_03_000002_create_tenant_integration_table.php

@@ -0,0 +1,36 @@
+<?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('tenant_integration', function (Blueprint $table) {
+            $table->id();
+            $table->string('integration_code');
+            $table->string('tenant_code');
+            $table->longText('integration_data')->nullable(); // Stored as longText because it's encrypted JSON
+            $table->timestamps();
+
+            // Foreign keys
+            $table->foreign('integration_code')->references('integration_code')->on('integrations')->onDelete('cascade');
+            $table->foreign('tenant_code')->references('codigo')->on('tenants')->onDelete('cascade');
+
+            $table->unique(['integration_code', 'tenant_code']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('tenant_integration');
+    }
+};