Package and individual mail sender, new report, and other changes

Co-authored-by: Copilot <copilot@github.com>

app/Http/Requests/StoreEmailPackageFromContractsRequest.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class StoreEmailPackageFromContractsRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return $this->user()?->can('manage-settings') ?? false;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'type' => ['required', 'in:email'],
+            'name' => ['nullable', 'string', 'max:255'],
+            'description' => ['nullable', 'string'],
+            'meta' => ['nullable', 'array'],
+
+            // Common payload for all items
+            'payload' => ['required', 'array'],
+            'payload.mail_profile_id' => ['nullable', 'integer', 'exists:mail_profiles,id'],
+            'payload.template_id' => ['nullable', 'integer', 'exists:email_templates,id'],
+            'payload.subject' => ['nullable', 'string', 'max:255'],
+            'payload.body_text' => ['nullable', 'string', 'max:10000'],
+            'payload.variables' => ['nullable', 'array'],
+
+            // Source contracts to derive items from
+            'contract_ids' => ['required', 'array', 'min:1'],
+            'contract_ids.*' => ['integer', 'exists:contracts,id'],
+        ];
+    }
+}