Refactor lib/conductor-env-shim.ts to export promoteConductorEnv()
so unit tests can manipulate env and call it directly (a bare side-
effect IIFE on import isn't reachable from bun:test once cached).
The on-import IIFE still runs — existing four-entry-point imports
keep working unchanged.
test/conductor-env-shim.test.ts covers all three branches:
GSTACK_FOO present + FOO empty → promotion; FOO already set →
no-overwrite; nothing in env → no-op.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
New lib/conductor-env-shim.ts promotes GSTACK_ANTHROPIC_API_KEY and
GSTACK_OPENAI_API_KEY to canonical names when canonical is empty. Wired
into the four TS entry points that hit paid APIs or gbrain embeddings:
gstack-gbrain-sync.ts, gstack-model-benchmark, preflight-agent-sdk.ts,
test/helpers/e2e-helpers.ts. Side-effect-only import, 15 lines total.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Garry Tan