feat(social-media): add SocialMedia model, migration, and tests for tenant associations

database/migrations/2026_07_23_000200_create_social_media_tables.php

@@ -0,0 +1,43 @@
+<?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('social_media', function (Blueprint $table): void {
+            $table->id();
+            $table->string('code')->unique();
+            $table->string('icon');
+            $table->string('name');
+            $table->timestamps();
+        });
+
+        Schema::create('tenant_social_media', function (Blueprint $table): void {
+            $table->id();
+            $table->string('tenant_code');
+            $table->string('social_media_code');
+            $table->string('url');
+            $table->timestamps();
+
+            $table->foreign('tenant_code')
+                ->references('codigo')
+                ->on('tenants')
+                ->cascadeOnDelete();
+            $table->foreign('social_media_code')
+                ->references('code')
+                ->on('social_media')
+                ->cascadeOnDelete();
+            $table->unique(['tenant_code', 'social_media_code']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('tenant_social_media');
+        Schema::dropIfExists('social_media');
+    }
+};