feat(attachments): create Attachment model and migration for file attachments

app/Domains/Attachable/Models/Attachment.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Domains\Attachable\Models;
+
+use Illuminate\Database\Eloquent\Attributes\Fillable;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
+
+#[Fillable([
+    'attachable_type',
+    'attachable_id',
+    'path',
+    'filename',
+    'type',
+    'mime_type',
+    'is_public',
+    'extension',
+    'size',
+])]
+class Attachment extends Model
+{
+    use HasFactory;
+
+    protected $table = 'attachments';
+
+    protected function casts(): array
+    {
+        return [
+            'attachable_id' => 'integer',
+            'is_public' => 'boolean',
+            'size' => 'integer',
+        ];
+    }
+
+    /**
+     * @return MorphTo<Model, $this>
+     */
+    public function attachable(): MorphTo
+    {
+        return $this->morphTo();
+    }
+}

app/Domains/Tenant/Models/Tenant.php

@@ -47,7 +47,6 @@ class Tenant extends Model
     {
         return $this->hasMany(Product::class, 'tenant_codigo', 'codigo');
     }
-
     /**
      * @return HasMany<TenantPropValue, $this>
      */

database/migrations/2026_06_25_000500_create_attachments_table.php

@@ -0,0 +1,40 @@
+<?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('attachments', function (Blueprint $table) {
+            $table->id();
+            $table->string('attachable_type');
+            $table->unsignedBigInteger('attachable_id');
+            $table->string('path');
+            $table->string('filename');
+            $table->string('type')->nullable();
+            $table->string('mime_type');
+            $table->boolean('is_public')->default(false);
+            $table->string('extension', 20)->nullable();
+            $table->unsignedBigInteger('size')->default(0);
+            $table->timestamps();
+
+            $table->index(['attachable_type', 'attachable_id']);
+            $table->index('type');
+            $table->index('mime_type');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('attachments');
+    }
+};