add `ngit repo` subcommand group

- `ngit repo` (no subcommand): show repository info including maintainer
  tree, per-maintainer infrastructure attribution, and a note explaining
  the union-vs-personal field model and recursive maintainer sets
- `ngit repo init`: alias for `ngit init`
- `ngit repo edit`: same as init but signals intent to update an existing
  repository announcement
- `ngit repo accept`: scoped command for co-maintainers to publish their
  announcement; errors with clear messages for all other states (trusted
  maintainer, already accepted, not invited, no repo found)

1 files changed, 3 insertions, 0 deletions

diff --git a/src/bin/ngit/main.rs b/src/bin/ngit/main.rs
index c88238a..924a714 100644
--- a/src/bin/ngit/main.rs
+++ b/src/bin/ngit/main.rs
@@ -49,6 +49,9 @@ async fn main() {
                 }
             },
             Commands::Init(args) => sub_commands::init::launch(&cli, args).await,
+            Commands::Repo(args) => {
+                sub_commands::repo::launch(&cli, args.repo_command.as_ref()).await
+            }
             Commands::List {
                 status,
                 json,