Eval probes wrote fixtures, receipts and evidence to hard-coded /tmp paths and
two live A/B tasks literally instructed the model to work in /tmp. They now
derive locations from tempfile.gettempdir() / os.tmpdir() (env overrides kept),
usage examples use relative output names, and the desktop e2e screenshot dirs,
perf scripts and the short-session repro fixture stop naming /tmp. Also adds
the explicit encoding= the windows-footgun check wants in the touched files.
Fake local Responses SSE server plays the Codex backend; scenarios cover live
capture (CLI same-object history and gateway reloaded history), SessionDB
close/reopen restore into a fresh agent, and the over-threshold negative where
local compression must still fire after real usage arrives.
