The new tests/docker/ suite (added by this PR) was being picked up by the
sharded pytest matrix in tests.yml, where its session-scoped `built_image`
fixture issued a 3-7min `docker build` under tests/docker/conftest.py's
180s pytest-timeout cap. Every test in the directory failed in fixture
setup across all 6 shards.
Fix the suite so it actually runs (not skips):
1. Wire the docker tests into docker-publish.yml's build-amd64 job, right
after the existing smoke test. The image is already loaded into the
local daemon as `nousresearch/hermes-agent:test`; set
HERMES_TEST_IMAGE to that and the fixture's pre-built-image branch
short-circuits the rebuild. 21 tests run in ~90s locally against a
prebuilt image, no rebuild cost on top of the existing build step.
2. Exclude tests/docker/ from scripts/run_tests_parallel.py's default
discovery so the sharded matrix in tests.yml stops trying to build
the image. Explicit positional paths (`pytest tests/docker/` or
`scripts/run_tests.sh tests/docker/`) still pick the suite up — the
skip rule honors directory-level user intent, matching the existing
per-file override pattern.
The dedicated docker-tests step runs on every PR that touches docker
code (the existing path filters on docker-publish.yml already cover
`tests/docker/**` via `**/*.py`), so the suite gates real changes.
(cherry picked from commit 4c481860ce6762d8e0f79bf0af56d1beb638f41d)
da8b2e95fd