* [62845be1] test(gateway): prove claim_review/evidence timeout fix — dedup, timeout guards
Add the test coverage the acceptance criteria require but the existing
implementation lacked: a git.py-level test proving diff_and_files
resolves the shared workspace/token/head/base state exactly once, and
bounded-timeout tests exercising the actual gateway_timeout trip for
evidence(), claim_review, and the /api/git/diff route. Also fixes
pre-existing ruff-format drift and a mypy no-any-return in the same
fix cluster (content_actions.py, git.py, qa.py, routes/git.py) so
make gate passes clean.
* [62845be1] fix(gateway): add missing evidence_assembly_timeout_seconds/conventions_validator_timeout_seconds settings and Envelope.gateway_timeout classmethod
The claim_review/evidence()/roboco_git_diff bounded-timeout fix referenced
settings.evidence_assembly_timeout_seconds, settings.conventions_validator_timeout_seconds,
and Envelope.gateway_timeout() but none of the three were ever defined,
so every code path that hit the timeout guard raised AttributeError instead
of returning the structured envelope. Added both Settings fields (90s/45s
defaults, well under flow_verb_timeout_seconds) and the Envelope.gateway_timeout
classmethod matching the wire shape api/middleware.py's outer 504 already uses.
* [62845be1] docs(services): document claim_review/evidence timeout fix — dedup, parallelization, bounded timeouts
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Co-authored-by: Backend Developer 1 <be-dev-1@roboco.tech>
Co-authored-by: Backend Documenter <be-doc@roboco.tech>
