- Added `sendWashCertificateToCustomer` method in `order_bookings_o` to handle email sending for wash certificates.
- Implemented `sendWashCertificateEmailToCustomer` in `email` to generate and attach wash certificate PDFs.
- Updated attachment permission logic in `ordersRoute` and `db_object_t`.
- Changed `object_attachments_o` property types and handling for improved attachment processing.
- Added functionality to create and attach wash certificates during booking completion.
- Enhanced `completeBooking` to generate and associate wash certificates with orders based on booking items.
- Updated safety seal parameter handling in relevant methods.
- Integrated wash certificate PDF generation with customer branding and order attachment logic.
- Improved file retrieval logic in the `file_server` to handle missing certificates via alternative store lookup.
- Implemented CRUD operations for order attachments, including adding, listing, downloading, and deleting.
- Updated `db_object_t` and `attachments` to enhance object-attachment interactions with new methods for formatting, creating, and managing attachments.
- Added new routes (`/orders/attachments` and `/attachments/upload`) for attachment-related functionality.
- Adjusted `file_server.php` to handle temp file downloads and attachment storage.
- Improved typing and error handling across attachment helper methods and classes.
- Added `attachments` module for creating, reading, updating, and deleting attachments.
- Introduced new classes such as `attachments`, `attachment_store`, `attachment_content`, and `attachment_relation` to handle attachment operations and their relationships.
- Integrated `attachments` features into `db_object_t` for seamless object-attachment interactions.
- Added `attachments_i` interface for standardized attachments module operations.
- Created `attachmentsRoute` for defining endpoints related to attachments.
- Enabled module configuration through `attachments_enabled_c` for attachment management control.