feat(cover-note): add kind-1624 cover notes for PRs, patches, and issues

Implements experimental kind-1624 cover note events:

- KIND_COVER_NOTE constant and process_cover_note() in git_events.rs;
  replaceable semantics (latest created_at, hex-id tiebreak), author or
  maintainer only
- kind-1624 events fetched alongside labels in the fetch pipeline;
  cover_notes count added to FetchReport display
- ngit pr/issue view: cover note displayed in place of description with
  a clear 'Cover Note:' header; maintainer-authored notes identify the
  author; original description shown only with --comments; cover_note
  object included in --json output
- ngit pr set-cover-note / ngit issue set-cover-note: publish a
  kind-1624 event; nostr: mentions in --body converted to q/p tags via
  tags_from_content (same rules as issue --body)
- Fix pre-existing clippy::too_many_lines on repo/mod.rs show_info

1 files changed, 8 insertions, 1 deletions

diff --git a/src/bin/ngit/sub_commands/pr_status.rs b/src/bin/ngit/sub_commands/pr_status.rs
index 4a51bb3..f3ac627 100644
--- a/src/bin/ngit/sub_commands/pr_status.rs
+++ b/src/bin/ngit/sub_commands/pr_status.rs
@@ -206,5 +206,12 @@ pub async fn launch_ready(id: &str, offline: bool, reason: Option<&str>) -> Resu
 }
 
 pub async fn launch_draft(id: &str, offline: bool, reason: Option<&str>) -> Result<()> {
-    launch_status(id, offline, Kind::GitStatusDraft, "converted to draft", reason).await
+    launch_status(
+        id,
+        offline,
+        Kind::GitStatusDraft,
+        "converted to draft",
+        reason,
+    )
+    .await
 }