## Summary
- require `OPENHUMAN_E2E_MODE=1` before `openhuman.test_reset` can wipe state
- export the runtime flag from the unified E2E session runner
- document the E2E runtime flag in the E2E testing guide
Closes#1863.
## Testing
- [x] `cargo fmt --all --check`
- [x] `git diff --check`
- [x] `cargo test -p openhuman --features e2e-test-support test_support::rpc --lib` attempted locally; blocked before tests by missing `libclang`/`clang.dll` from `whisper-rs-sys`
- [x] `bash -n app/scripts/e2e-run-session.sh` attempted locally; blocked because Bash resolves to WSL and WSL is not enabled on this machine
## Checklist
- [x] I have tested my changes locally or explained why local testing was limited.
- [x] I have added or updated tests for behavior changes.
- [x] I have updated documentation where needed.
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
## Release Notes
* **Documentation**
* Updated end-to-end testing documentation with new environment variable details.
* **Tests**
* Enhanced end-to-end testing infrastructure with explicit mode verification for test-support operations.
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Co-authored-by: aqilaziz <gonzes7@gmail.com>
Co-authored-by: Steven Enamakel <enamakel@tinyhumans.ai>
