Fixes the root cause of OPENROUTER_API_KEY being overwritten with test-key-fresh on every pytest run.
Three-layer fix:
1. Unit tests: mock _get_active_hermes_home in TestApplyOnboardingSetupGuard so .env writes land in /tmp, never ~/.hermes
2. Test server subprocess: add HERMES_BASE_HOME=TEST_STATE_DIR to hard-lock profile resolution inside the server process
3. Test server subprocess: strip real provider keys (OPENROUTER_API_KEY etc.) from the inherited env before server starts
Reviewed and approved by @nesquena. 1373 passed, 0 skipped.
Fixes two SKIP_ONBOARDING bugs and eliminates 10 permanently-skipped integration tests.
- SKIP_ONBOARDING=1 now honoured unconditionally (no longer gated on chat_ready)
- apply_onboarding_setup refuses to write config/env files when SKIP_ONBOARDING is set
- TestMediaEndpointIntegration (6) and TestOnboardingGateIntegration (4): collection-time
skip guards removed; server reachability checked at runtime with fail() not skip()
Tests: 1327 passed, 0 skipped.
Admin merge — self-built PR, Nathan authorized full merge process in session.
