Add a bounded manual stack-scan in the GoOnline detour (FIFA-frame finder).
Result: zero FIFA23.exe frames, sp ~2.4KB below stack top => GoOnline runs on an
anadius worker thread (queued), not FIFA's thread. Three-way corroboration that
the gate is an async "online established" event anadius (offline-only) never
pushes; FIFA waits/retries. No handler-response flip can cross it. Documented in
connection-gate-findings.md.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
funman300
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