Fix Jalali crash when creating task with invalid target_date.

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

app/Http/Controllers/TaskController.php

@@ -265,12 +265,18 @@ class TaskController extends Controller
             return null;
         }
 
-        if (preg_match('/^(\d{4}-\d{2}-\d{2})/', $value, $m)) {
-            return $m[1];
-        }
-
         try {
-            return Carbon::parse($value)->format('Y-m-d');
+            if (preg_match('/^(\d{4}-\d{2}-\d{2})/', $value, $m)) {
+                $carbon = Carbon::createFromFormat('Y-m-d', $m[1])->startOfDay();
+            } else {
+                $carbon = Carbon::parse($value);
+            }
+
+            if ($carbon->year < 1621 || $carbon->year > 2500) {
+                return null;
+            }
+
+            return $carbon->format('Y-m-d');
         } catch (\Throwable $e) {
             return null;
         }
@@ -711,7 +717,8 @@ class TaskController extends Controller
         $task = Tasks::create($data);
 
         $message = "تسک جدیدی با عنوان {$data['title']} برای شما ایجاد شد.";
-        $deadline = !empty($data['target_date']) ? Jalalian::fromCarbon(Carbon::parse($data['target_date']))->format('Y-m-d') : null;
+        $deadline = \App\Support\JalaliHelper::format($data['target_date'] ?? null, 'Y/m/d', '');
+        $deadline = $deadline !== '' ? $deadline : null;
         $app = App::find($data['app']);
         $message_admin = "ایجاد تسک: «{$data['title']}»";
         $message_admin .= !empty($app) ? "\nاپ {$app->name_fa}" : null;