Fix: Add central users table and correct login redirection

- Copy users and roles migrations to central database context
- Redirect central domain root to /admin/login
- Fix SuperAdminSeeder to include required role_id

database/migrations/2021_03_12_074597_create_roles_table.php

@@ -0,0 +1,35 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('roles', function (Blueprint $table) {
+            $table->increments('id');
+            $table->string('name');
+            $table->string('description')->nullable();
+            $table->string('permission_type');
+            $table->json('permissions')->nullable();
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('roles');
+    }
+};