Add chunked uploads and raise storage rate to GHS 0.30/GB/month.

Large files upload in 5 MB chunks (hosting file manager pattern) for the
transfer UI and Ladill Mail S2S API, with no app-level file size cap when
TRANSFER_MAX_FILE_BYTES=0.

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

app/Http/Controllers/Transfer/TransferController.php

@@ -7,6 +7,7 @@ use App\Models\Transfer;
 use App\Services\Qr\QrImageGeneratorService;
 use App\Services\Qr\QrPdfExporter;
 use App\Services\Transfer\TransferService;
+use App\Services\Upload\ChunkedUploadService;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
 use Illuminate\Support\Str;
@@ -19,6 +20,7 @@ class TransferController extends Controller
 {
     public function __construct(
         private TransferService $transfers,
+        private ChunkedUploadService $chunkedUploads,
         private QrImageGeneratorService $imageGenerator,
         private QrPdfExporter $pdfExporter,
     ) {}
@@ -42,7 +44,7 @@ class TransferController extends Controller
         return view('transfer.transfers.create', [
             'defaultRetentionDays' => (int) config('transfer.default_retention_days', 30),
             'maxFiles' => (int) config('transfer.max_files_per_transfer', 20),
-            'pricePerGb' => (float) config('transfer.price_per_gb_month', 0.15),
+            'pricePerGb' => (float) config('transfer.price_per_gb_month', 0.30),
         ]);
     }
 
@@ -50,19 +52,47 @@ class TransferController extends Controller
     {
         $account = ladill_account();
 
+        $maxBytes = (int) config('transfer.max_file_bytes', 0);
+        $fileRules = ['nullable', 'file'];
+        if ($maxBytes > 0) {
+            $fileRules[] = 'max:'.(int) ceil($maxBytes / 1024);
+        }
+
         $data = $request->validate([
             'title' => 'required|string|max:120',
             'message' => 'nullable|string|max:2000',
             'password' => 'nullable|string|min:4|max:64',
             'retention_days' => 'nullable|integer|min:1|max:365',
-            'files' => 'required|array|min:1',
-            'files.*' => 'required|file|max:'.((int) config('transfer.max_file_bytes', 524288000) / 1024),
+            'files' => 'nullable|array',
+            'files.*' => $fileRules,
+            'upload_ids' => 'nullable|array',
+            'upload_ids.*' => 'required|string|uuid',
         ]);
 
+        $ownerKey = 'user:'.$account->id;
+        $files = array_values($request->file('files', []) ?? []);
+        $uploadIds = array_values($data['upload_ids'] ?? []);
+
+        if ($files === [] && $uploadIds === []) {
+            return back()->withInput()->with('error', 'Add at least one file to share.');
+        }
+
+        foreach ($uploadIds as $uploadId) {
+            try {
+                $files[] = $this->chunkedUploads->toUploadedFile($uploadId, $ownerKey);
+            } catch (RuntimeException $e) {
+                return back()->withInput()->with('error', $e->getMessage());
+            }
+        }
+
         try {
-            $transfer = $this->transfers->create($account, $data, $request->file('files', []));
+            $transfer = $this->transfers->create($account, $data, $files);
         } catch (RuntimeException $e) {
             return back()->withInput()->with('error', $e->getMessage());
+        } finally {
+            foreach ($uploadIds as $uploadId) {
+                $this->chunkedUploads->cleanup($uploadId);
+            }
         }
 
         return redirect()