The OpenClaw DouBaoSeed preset hard-coded contextWindow 128000 while the
Codex preset/catalog uses 262144 for the same model, giving OpenClaw users
a too-small window that could compress or truncate long context early.
Align to 262144 and add a cross-preset consistency test asserting the
OpenClaw and Codex Doubao context windows stay equal, so neither side can
drift again.
Jason