2021_08_01_053512_create_projects_table.php

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class CreateProjectsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('projects', function (Blueprint $table) {
            $table->id();
            $table->foreignId("user_id")->constrained();
            $table->string("name", 100)->unique();
            $table->text("description")->nullable();
            $table->string("featured_image", 150)->nullable();
            $table->timestamps();
            $table->softDeletes(); // <---- añade esta línea a tus migraciones
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('projects');
    }
}

Project.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\SoftDeletes;

class Project extends Model
{
    use HasFactory;
    use SoftDeletes; // <--- aplica el Trait SoftDeletes a tus modelos
}