feat: new search experience (#58)

Reviewed-on: #58

docs/TODO.md

@@ -0,0 +1,19 @@
+# TODO
+
+Open items from the search and lazy-loading work. Each entry notes the known
+tradeoff and where the fix would land.
+
+## nip29
+
+- [ ] **Incremental event handling for open groups.** Live events for an open
+  (active) group still trigger a full envelope reload and re-hydrate of the
+  whole group on every event (`GroupsRegistry::reload` in
+  `crates/nip29/src/lib.rs`). Closed groups already absorb events in O(1);
+  open groups could use the same incremental path, keeping the full reload
+  only as an occasional self-healing rebuild.
+- [ ] **Fetch admins' group lists from NIP-29 relays.** The fork-detection
+  query (`GroupsRegistry::sync_forks`) is unscoped, so group relays refuse it
+  by policy (`must have 'h', 'e' or 'a' tag`). It still works via generic and
+  gossip relays, but the deeper fix is a per-relay scoped subscription using
+  an `a` tag with `10009:<admin-pk>` coordinates. The exact coordinate format
+  each relay accepts needs to be tested first.