feat: request kind-5 deletions for state/announcement events by #e

Add a non_proposal_event_ids parameter to get_fetch_filters and a
corresponding field on FetchRequest. On each fetch, the event IDs of
cached repo announcements and the state event are collected and used to
build a dedicated kind-5 filter keyed on #e tags, as specified by
NIP-09. The existing #a-tagged filter already covers addressable-event
deletions; this new filter catches deletions from clients that follow
NIP-09 strictly and do not embed a repo coordinate in their deletion
event.

0 files changed, 0 insertions, 0 deletions