Diego Rodrigues de Sa e Souza db5ee5995b fix(combos): reject oversized fusion panels before fan-out (port from 9router#1905) (#7120) ...

A fusion combo fans every panel model out in parallel and buffers each
model's full response text in memory simultaneously. With the runtime heap
capped by Dockerfile's OMNIROUTE_MEMORY_MB (default 1024MB), a large panel
(reported: ~73 models via an 'auto' combo with strategy: fusion) with
sizable concurrent responses can exceed the heap ceiling and OOM-crash the
whole container instead of failing one request.

handleFusionChat now rejects panels above a configurable hard cap
(FUSION_DEFAULTS.maxPanel = 40, overridable per-combo via
fusionTuning.maxPanel) with a clean 400 before fan-out begins.

Reported-by: Phong Vu (@fontvu) (https://github.com/decolua/9router/issues/1905)

2026-07-16 14:14:05 -03:00

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