When a menu item's NIP-99 kind-30402 listing is published, the
extension now emits one 't' tag per ancestor node name (root-first,
slugified to lowercase ASCII). This lets Nostr clients filter the
global listing stream by category — e.g.
{"#t": ["hot-beverages"]}
{"#t": ["coffee-based"]}
without having to know the publisher's pubkey or pull markdown
content. The 'menu' anchor stays first so subscribers can still
get the universal stream. Allergen / ingredient prefixes
(allergen:<x>, ingr:<x>) and dietary tags are unchanged.
nostr_publisher.py:
- Add _slugify(name) -> str (lowercase, [^a-z0-9]+ -> '-', strip).
- build_menu_item_event takes ancestor_names: tuple[str, ...] kw
and emits dedup'd slugs. Stays DB-free; the caller does the
walk.
views_api.py:
- _ancestor_names_for_node walks the materialized path of an
item's node to (root.name, ..., leaf.name).
- _publish_menu_item passes them to the builder.
- api_update_menu_node detects a name change and calls
_republish_subtree_items(node_id), which re-publishes every
menu_item in the subtree so the new ancestor slug lands on
each listing. <=50 items per restaurant in practice; eager
re-publish keeps the relay state consistent without a
background sync.
nostr/event.py
Bare NIP-01 NostrEvent with canonical id computation.
nostr/nostr_client.py
Bidirectional WebSocket client (lifted from events ext, kept
local). Connects to nostrclient ext's internal relay endpoint,
dedups by event id (LRU 1000).
nostr_publisher.py
Builders for:
* kind 0 — restaurant profile (NIP-01 metadata)
* kind 30402 — menu item (NIP-99 classified listing,
parameterized replaceable by item.id)
* kind 5 — deletion request (NIP-09)
Schnorr signing via coincurve (BIP-340).
Menu listings carry structured price tags (["price", n, currency]),
status (active|sold) so customers see sold-out items, and 't' tags
for category, dietary, allergens (allergen:<x>) and ingredients
(ingr:<x>) so webapps can filter without parsing markdown.
Restaurants can sign with their own keypair (per-restaurant Nostr
identity) or fall back to the LNbits Account keypair.
nostr_sync.py
Subscribes to:
* kind 30402 #t=menu — backfill 200 + live (echo confirmation
for now; foreign-menu indexing deferred until we settle on a
federated cache table).
* kind 1059 — NIP-17 gift-wrapped DMs, only when
settings.nostr_orders_enabled. Decryption stubbed (needs
NIP-44 v2 unwrap); REST stays the supported transport
until that's wired up. _place_order_from_dm is complete and
ready for the decryption hook.
