* fix(events): bill reached deliveries only, bound dispatch reads, seal cursors
- A broadcast socket copy is billed only when a connection for its holder
exists on this node, anywhere in this region (connection count) or, for a
durable row, in a region presence names. Without peers it bills as before.
- Compiled match filters are held in a bounded LRU with a TTL, and dropped
when another process reports a subscription ended.
- GET /events/fetch reads the continuation from `cursor`, falling back to
`after`.
- Cursors from /events/fetch, /events/subscriptions and /events/kv-handles
are encrypted with sealCursor/openCursor; plain cursors still read.
- A durable subscribe counts again after its insert and removes its own row
when over the cap; the generation bump for that removal is published.
- Subscribe checks access before reading the anchor's owner, and an anchor
gone in between answers with the subject the caller sent.
- Dispatch reads at most the rows per token routing can use, scanning large
token hashes; a removal still settles every row on the removed anchor.
- puter.events.unsubscribe() stops routing after the server ends the
subscription or reports it gone; fetch() accepts `cursor`.
* fix(events): forward kv values only to regions with rows that ask
- A region counts its session rows asking for kv values per token and
announces the token's value variant (`v#<token>`) over the existing
`watch` item on the first such row, withdrawing it with the last. Add,
remove, reap, reanchor and refresh all keep it, reading `includeValue` off
the row as it is dropped.
- A kv write reads the value variants alongside the watch index and attaches
the value only to forwards bound for a region that announced one.
* fix(pagination): seal id-keyed cursors on every list endpoint
Apps, subdomains, workers, team (members, directory, teams, audit, own
audit), shares (inbound, outbound), the user-to-user permission audit and
readdir/descendant listings now hand out cursors sealed with sealCursor and
read them with openCursor, so a cursor no longer carries a row id. Plain
cursors issued before still read.
* test(events): pass socket ids to noteConnect in the billing tests
Daniel Salazar