feat(hbbs): keep 100000 punch-request records by default

With peer ids capped at 253 bytes a full store is roughly 45 MB at
worst, so a larger default keeps more console history.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PkpVy2ufxgEjKd3SjXPnJ8

src/rendezvous_server.rs

@@ -69,7 +69,7 @@ struct PunchReqEntry { tm: Instant, from_ip: String, to_ip: String, to_id: Strin
 static PUNCH_REQS: Lazy<TokioMutex<VecDeque<PunchReqEntry>>> = Lazy::new(|| TokioMutex::new(VecDeque::new()));
 const PUNCH_REQ_DEDUPE_SEC: u64 = 60;
 static PUNCH_REQ_MAX: Lazy<usize> =
-    Lazy::new(|| get_arg("MAX_PUNCH_REQUESTS").parse().unwrap_or(10_000));
+    Lazy::new(|| get_arg("MAX_PUNCH_REQUESTS").parse().unwrap_or(100_000));
 
 async fn record_punch_req(from_ip: String, to_ip: String, to_id: String) {
     let max = *PUNCH_REQ_MAX;