Both auth.ts and trpc.ts now delegate the E2E_TEST_MODE-in-production
check to a single shared helper (packages/api/src/lib/runtime-security.ts).
trpc.ts used to only console.warn; it now throws at module load time,
matching the behaviour already enforced by assertSecureRuntimeEnv on the
auth side. A future refactor can no longer silently drop the guard on
either side.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
