Product delete (#64)

* 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

helpers.py

@@ -75,14 +75,6 @@ def copy_x(output, x32, y32, data):
     return 1
 
 
-def order_from_json(s: str) -> Tuple[Optional[Any], Optional[str]]:
-    try:
-        order = json.loads(s)
-        return (order, s) if (type(order) is dict) and "items" in order else (None, s)
-    except ValueError:
-        return None, s
-
-
 def normalize_public_key(pubkey: str) -> str:
     if pubkey.startswith("npub1"):
         _, decoded_data = bech32_decode(pubkey)