[FEATURE]:Test efficiency

Feature hasn't been suggested before.

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Describe the enhancement you want to request

I often see opencode running tests like this

go test -v --count=1 -tags=integration -run 'TestTmp_CheckAuthRegistryStatus' ./cmd/regtool/ 2>&1 | tail -3

this is efficient in the sense that it reduces context bloat. However, it can be terribly inefficient if the test takes a long time to run. I have a skill that asks it to log to a file, but skills are always flaky since the LLM can forget to use them.

This is then like this

go test -v --count=1 -tags=integration -run 'TestTmp_CheckAuthRegistryStatus' ./cmd/regtool/ 2>&1 | tail /tmp/test.log | tail -3 

In this way it can inspect the details of test output. Can this be improved in opencode? I have the feeling that opencode it instructing it somehow to do this 'tail -3' at the end. It works fine for very fast unit tests but not for integration tests.