WebAPP/database/migrations/0020_01_01_000000_create_files_table.php

<?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('files', function (Blueprint $table) {
            $table->id();
            $table->foreignId('file_category_id')->constrained('file_categories')->cascadeOnDelete();
            $table->string('original_name');
            $table->string('stored_name');
            $table->string('mime_type', 100);
            $table->unsignedBigInteger('size');
            $table->string('disk', 20)->default('private');
            $table->foreignId('uploaded_by')->constrained('users')->cascadeOnDelete();
            $table->timestamps();

            $table->index('file_category_id');
            $table->index('uploaded_by');
        });
    }

    public function down(): void
    {
        Schema::dropIfExists('files');
    }
};