Add endpoint needed for recieving and processing activity

app/Http/Requests/Api/Remote/ActivityEventRequest.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace Pterodactyl\Http\Requests\Api\Remote;
+
+use Illuminate\Support\Collection;
+use Illuminate\Foundation\Http\FormRequest;
+
+class ActivityEventRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'data' => ['required', 'array'],
+            'data.*' => ['array'],
+            'data.*.user' => ['present', 'uuid'],
+            'data.*.server' => ['required', 'uuid'],
+            'data.*.event' => ['required', 'string'],
+            'data.*.metadata' => ['present', 'nullable', 'array'],
+            'data.*.ip' => ['present', 'ip'],
+            'data.*.timestamp' => ['required', 'string'],
+        ];
+    }
+
+    /**
+     * Returns all of the unique server UUIDs that were recieved in this request.
+     *
+     * @return string[]
+     */
+    public function servers(): array
+    {
+        return Collection::make($this->input('data'))->pluck('server')->unique()->toArray();
+    }
+
+    /**
+     * Returns all of the unique user UUIDs that were submitted in this request.
+     *
+     * @return string[]
+     */
+    public function users(): array
+    {
+        return Collection::make($this->input('data'))
+            ->filter(function ($value) {
+                return !empty($value['user']);
+            })
+            ->pluck('user')
+            ->unique()
+            ->toArray();
+    }
+}