Rename controller namespaces: drop V1 prefix, clarify roles

V1/Admin     -> Company       (company-scoped controllers)
V1/SuperAdmin -> Admin        (platform-wide admin controllers)
V1/Customer  -> CustomerPortal (customer-facing portal)
V1/Installation -> Setup      (installation wizard)
V1/PDF       -> Pdf           (consistent casing)
V1/Modules   -> Modules       (drop V1 prefix)
V1/Webhook   -> Webhook       (drop V1 prefix)

The V1 prefix served no purpose - API versioning is in the route prefix
(/api/v1/), not the controller namespace. "Admin" was misleading for
company-scoped controllers. "SuperAdmin" is now simply "Admin" for
platform administration.

app/Http/Controllers/Company/Auth/RegisterController.php

@@ -0,0 +1,70 @@
+<?php
+
+namespace App\Http\Controllers\Company\Auth;
+
+use App\Http\Controllers\Controller;
+use App\Models\User;
+use App\Providers\AppServiceProvider;
+use Illuminate\Foundation\Auth\RegistersUsers;
+use Illuminate\Support\Facades\Validator;
+
+class RegisterController extends Controller
+{
+    /*
+    |--------------------------------------------------------------------------
+    | Register Controller
+    |--------------------------------------------------------------------------
+    |
+    | This controller handles the registration of new users as well as their
+    | validation and creation. By default this controller uses a trait to
+    | provide this functionality without requiring any additional code.
+    |
+    */
+
+    use RegistersUsers;
+
+    /**
+     * Where to redirect users after registration.
+     *
+     * @var string
+     */
+    protected $redirectTo = AppServiceProvider::HOME;
+
+    /**
+     * Create a new controller instance.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        $this->middleware('guest');
+    }
+
+    /**
+     * Get a validator for an incoming registration request.
+     *
+     * @return \Illuminate\Contracts\Validation\Validator
+     */
+    protected function validator(array $data)
+    {
+        return Validator::make($data, [
+            'name' => ['required', 'string', 'max:255'],
+            'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
+            'password' => ['required', 'string', 'min:8', 'confirmed'],
+        ]);
+    }
+
+    /**
+     * Create a new user instance after a valid registration.
+     *
+     * @return \App\User
+     */
+    protected function create(array $data)
+    {
+        return User::create([
+            'name' => $data['name'],
+            'email' => $data['email'],
+            'password' => $data['password'],
+        ]);
+    }
+}