Merge remote-tracking branch 'upstream/master'

# Conflicts:
#	open-sse/handlers/chatCore.js
#	open-sse/providers/registry/index.js
#	open-sse/services/usage.js

open-sse/utils/streamHandler.js

@@ -41,7 +41,8 @@ export function createStreamController({ onDisconnect, onError, log, provider, m
       if (disconnected) return;
       disconnected = true;
 
-      logStream("⚡", `DISCONNECT: ${reason}`);
+      // Debug-only: Responses API has no [DONE] sentinel, so codex/droid close the
+      // socket on every completed request. "📊 done" is the authoritative outcome line.
       dbg("CTRL", `${provider}/${model} | disconnect=${reason} | dur=${Date.now() - startTime}ms`);
 
       // Delay abort to allow cleanup