fix: remove issue ref from comment, use forge::FORGE_HTTP in knowledge.rs

hive-c0re/src/main.rs

@@ -280,7 +280,7 @@ async fn cmd_serve(
     let mut knowledge_shutdown = coord.shutdown_rx();
     tokio::spawn(async move {
         // Initial pull — reconcile any commits that landed while c0re
-        // was offline, including the push that triggered #1244.
+        // was offline.
         if let Err(e) = knowledge::pull().await {
             tracing::debug!(error = ?e, "knowledge: startup pull skipped (no clone yet?)");
         }