restore composer.json, add mysqli extension

database/migrations/2019_09_20_154539_create_files_table.php

@@ -0,0 +1,25 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class CreateFilesTable extends Migration
+{
+    public function up()
+    {
+        Schema::create('files', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->string('name');
+            $table->string('path');
+            $table->string('path_thumb')->nullable();
+            $table->float('size');
+            $table->timestamps();
+        });
+    }
+
+    public function down()
+    {
+        Schema::dropIfExists('files');
+    }
+}