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* fix(test): make resetGateway restore the test baseline instead of unconfiguring (#3554) bunfig.toml's legacy-embedding-preload pins the gateway once at process start to openai:text-embedding-3-large @ 1536, but resetGateway() wiped that pin to _config = null. The next test file's beforeAll engine-connect then reconfigured from the SHIPPED default (zembed-1 @ 1280) before the preload's per-test beforeEach could restore anything, and every 1536-d fixture in that file failed with `expected 1280 dimensions, not 1536`. Which file pairs collided depended on shard bin-packing, so adding ANY test file reshuffled the mines (this is what blocks #3545). Fix: the preload registers its config as a reset baseline via a new test-only seam (__setGatewayResetBaselineForTests); resetGateway() clears all module state as before, then re-applies the baseline. All 93 existing resetGateway() call sites get the correct behavior with zero edits. Production is untouched: nothing in src/ calls resetGateway() or the setter, so the baseline is never registered outside tests and resetGateway() still fully unconfigures there. Five tests genuinely need an unconfigured gateway (no_gateway_config diagnosis, isAvailable=false, the #2590 cold-gateway path, the registry builtin-default tier); they switch to the new __unconfigureGatewayForTests. Two files' hand-rolled "restore the legacy pin in afterAll/finally" workarounds for this exact bug are now redundant and simplified away. Guard test (test/ai/gateway-reset-baseline.test.ts) pins the contract: 1536/openai immediately after resetGateway(), transports still cleared, hard-unconfigure still available. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * fix(test): restore preload's GBRAIN_AUDIT_DIR instead of deleting it (#3554 sibling) Same bug class as the gateway fix in this PR: state set once by a bunfig preload (audit-dir-preload's scratch GBRAIN_AUDIT_DIR), wiped by one file's cleanup, blast radius decided by shard bin-packing. In shard 6, test/minions-shell.test.ts (position 12) unconditionally deleted the var in afterAll; test/audit/audit-dir-preload.test.ts (position 93) then found it undefined and failed 3 tests — and every file in between wrote audit fixtures toward the operator's real ~/.gbrain/audit/. Fix: capture the prior value at file load and conditionally restore it, the same inline save/restore pattern 11 sibling files already use. test/e2e/skill-brain-first.test.ts had the identical unconditional delete in afterEach; fixed the same way. Sweep of every `delete process.env.GBRAIN_AUDIT_DIR` in test/ confirms all remaining sites are conditional restores. Ordered-pair proof (minions-shell.test.ts then audit/audit-dir-preload.test.ts, one process): 3 fail on master, 43/43 pass with this fix. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> --------- Co-authored-by: Garry Tan <garrytan@gmail.com> Co-authored-by: Claude Opus 5 <noreply@anthropic.com>