add `ngit repo --json` for machine-readable repo detection

Outputs {"is_nostr_repo": false} when not in a nostr repository, or
full structured JSON (name, identifier, description, nostr_url,
coordinate, maintainers, grasp_servers, git_servers, relays, hashtags)
when it is. Always exits 0. Also adds --title as an alias for --name
on `ngit init`.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/bin/ngit/cli.rs b/src/bin/ngit/cli.rs
index 5ee9165..5feaf31 100644
--- a/src/bin/ngit/cli.rs
+++ b/src/bin/ngit/cli.rs
@@ -158,6 +158,9 @@ pub struct RepoSubCommandArgs {
     /// Use local cache only, skip network fetch
     #[arg(long)]
     pub offline: bool,
+    /// Output repository info as JSON; is_nostr_repo is false when not in a nostr repository
+    #[arg(long)]
+    pub json: bool,
 }
 
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