Add recipient email and milestone notifications on transfer create.

Recipients can be emailed the download link immediately and at optional
reminders (7/3/1 days before unavailable, or when grace period starts).

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Http/Controllers/Transfer/TransferController.php

@@ -6,6 +6,7 @@ use App\Http\Controllers\Controller;
 use App\Models\Transfer;
 use App\Services\Qr\QrImageGeneratorService;
 use App\Services\Qr\QrPdfExporter;
+use App\Services\Transfer\TransferRecipientMailService;
 use App\Services\Transfer\TransferService;
 use App\Services\Upload\ChunkedUploadService;
 use Illuminate\Http\RedirectResponse;
@@ -41,10 +42,14 @@ class TransferController extends Controller
 
     public function create(): View
     {
+        $mailService = app(TransferRecipientMailService::class);
+
         return view('transfer.transfers.create', [
             'maxFiles' => (int) config('transfer.max_files_per_transfer', 20),
             'pricePerGb' => (float) config('transfer.price_per_gb_month', 0.30),
             'gracePeriodDays' => (int) config('transfer.grace_period_days', 15),
+            'emailMilestones' => $mailService->milestoneOptions(),
+            'defaultEmailMilestones' => (array) config('transfer.default_recipient_email_milestones', ['created']),
         ]);
     }
 
@@ -58,9 +63,14 @@ class TransferController extends Controller
             $fileRules[] = 'max:'.(int) ceil($maxBytes / 1024);
         }
 
+        $allowedMilestones = implode(',', app(TransferRecipientMailService::class)->allowedMilestones());
+
         $data = $request->validate([
             'title' => 'required|string|max:120',
             'message' => 'nullable|string|max:2000',
+            'recipient_email' => 'nullable|email|max:255|required_with:email_milestones',
+            'email_milestones' => 'nullable|array',
+            'email_milestones.*' => 'in:'.$allowedMilestones,
             'password' => 'nullable|string|min:4|max:64',
             'files' => 'nullable|array',
             'files.*' => $fileRules,
@@ -94,9 +104,14 @@ class TransferController extends Controller
             }
         }
 
+        $success = 'Transfer created. Share the link or QR code with recipients.';
+        if ($transfer->recipient_email && $transfer->wantsRecipientMilestone('created') && $transfer->recipientMilestoneSent('created')) {
+            $success .= ' A download link was emailed to '.$transfer->recipient_email.'.';
+        }
+
         return redirect()
             ->route('transfer.transfers.show', $transfer)
-            ->with('success', 'Transfer created. Share the link or QR code with recipients.');
+            ->with('success', $success);
     }
 
     public function show(Transfer $transfer): View