The swarm settings gain `runtime` (`api-key`, the default, or `acp`) and
an `acp` provider record: an https base URL, the provider's model, and
its prices per million tokens. A PUT now changes only the fields its
body names, so the settings form that sends model, effort and limit
leaves the runtime alone; `null` clears `effort` or `acp`. The body stays
strict, and the stored document keeps #5192's lenient read.
The controller sends the runtime in each run request. On `acp` the
classifier runs one prompt on a new `opencode acp` session per
classification through hive-runtime's AcpRuntime, in a scratch
directory, with a config rendered from the settings. opencode runs
`read` and other tools without asking, so OPENCODE_PERMISSION
{"*":"deny"} takes every tool away from the model, and a deny-all policy
refuses any request on top. The title call, which resends the prompt,
is turned off. The deadline cancels the turn, and a turn that does not
end within 15s of that is dropped, which also covers an agent stuck
before its prompt. The answer is the final assistant text, as ACP has
no result event.
The provider key is read per run from
swarm/services/review-classifier/acp-provider, which the bao UI's
admins login may create and update, and reaches opencode through
AcpRuntime::with_provider_key and the trampoline's allowlist.
Each ACP classification's cost is computed from the configured prices
and the reported tokens, and added to
hyperhive.review_classifier.cost.usage labelled repo, pr, model and
currency.
Part of #5096
hive-claude adds its variables on top of the parent's environment, so
claude inherited the daemon's store identity paths, CREDENTIALS_DIRECTORY
and queue coordinates. claude now starts as this same binary with
SWARM_REVIEW_CLASSIFIER_EXEC_CLAUDE naming the real one; main execs it
before the runtime starts, with the environment cleared down to the API
key, PATH, HOME, CLAUDE_CONFIG_DIR and claude's telemetry settings. The
exec keeps the pid, so hive-claude's cancel and idle timeout still reach
it. An integration test runs the built binary as the trampoline and
checks that a BAO_* variable does not reach the program it execs.
