refactor: streamline sales and expenses management in client resource

- Move create/edit logic from relation managers to dedicated resource pages
- Add transaction handling with proper rollback in sale create/update
- Fix expense transaction creation by using correct array access
- Set default client from query parameter in sale/expense forms
- Exclude 'type' field from balance creation to prevent errors

app/Filament/Resources/ExpenseResource.php

@@ -43,6 +43,7 @@ class ExpenseResource extends Resource
     {
         return [
             Select::make('client')
+                ->default(request()->query('client_id'))
                 ->options(Client::query()->get()->pluck('company', 'id'))
                 ->afterStateUpdated(function ($set, $get) {
                     $set('branch_id', '');