Updates type hints in `crud.py`, `helpers.py`, and `models.py` for improved readability and maintainability.
Replaces `Merchant | None` with `Optional[Merchant]` and `list[X]` with `List[X]` for consistency with standard Python typing practices.
Enhances the processing of Nostr messages by adding more robust error handling and logging, providing better insights into potential issues.
Specifically:
- Improves the checks on the websocket connection to log errors and debug information.
- Implements more comprehensive error logging for failed product quantity checks.
- Enhances logging and validation of EVENT messages to prevent potential errors.
- Implements a more robust merchant lookup logic to avoid double processing of events.
- Implements a more lenient time window for direct message subscriptions.
* feat: restore stalls from `nostr` as pending
* feat: stall and prod last update time
* feat: restore products and stalls as `pending`
* feat: show pending stalls
* feat: restore stall
* feat: restore a stall from nostr
* feat: add blank `Restore Product` button
* fix: handle no talls to restore case
* feat: show restore dialog
* feat: allow query for pending products
* feat: restore products
* chore: code clean-up
* fix: last dm and last order query
* chore: code clean-up
* fix: subscribe for stalls and products on merchant create/restore
* feat: add message type to orders
* feat: simplify messages; code format
* feat: add type to DMs; restore DMs from nostr
* fix: parsing ints
* fix: hide copy button if invoice not present
* fix: do not generate invoice if product not found
* feat: order restore: first version
* refactor: move some logic into `services`
* feat: improve restore UX
* fix: too many calls to customer DMs
* fix: allow `All` customers filter
* fix: ws reconnect on server restart
* fix: query for customer profiles only one
* fix: unread messages per customer per merchant
* fix: disable `user-profile-events`
* fix: customer profile is optional
* fix: get customers after new message debounced
* chore: code clean-up
* feat: auto-create zone
* feat: fixed ID for default zone
* feat: notify order paid
