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.

1 files changed, 1 insertions, 0 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d4b8083..1c5b583 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - git server push option passthrough, enabling `-o secret-scanning.skip` for grasp servers
 - `ngit sync` now publishes the current state event to grasp server relays that are missing it or have a stale version before attempting git pushes, preventing rejections; per-relay state visibility is captured during the nostr fetch and surfaced via `FetchReport::state_per_relay`
+- Fetch filters now request kind-5 deletion events for cached state and repo announcement events by `#e` tag (NIP-09), in addition to the existing `#a`-tagged filter; ensures deletions of these events are received even from clients that do not embed a repo coordinate in their deletion event
 
 ### Fixed