Add service API for Ladill Mail large attachment uploads.

Webmail can POST /api/v1/transfers with a mailbox address to create share links for files above 25 MB.

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

routes/api.php

@@ -2,8 +2,13 @@
 
 use App\Http\Controllers\Api\MeController;
 use App\Http\Controllers\Api\QrCodeController;
+use App\Http\Controllers\Api\TransferController;
 use Illuminate\Support\Facades\Route;
 
+Route::middleware('auth.service:transfer')->prefix('v1')->group(function () {
+    Route::post('/transfers', [TransferController::class, 'store']);
+});
+
 Route::middleware(['auth:sanctum', \App\Http\Middleware\SetActingAccount::class])->prefix('v1')->group(function () {
     Route::get('/me', MeController::class);