## Summary
CI red on `main` after #115. Failure was masked locally because `nx test` auto-loads `apps/portal-bff/.env` — the CI runner has no such file, so `process.env.REDIS_URL` is genuinely unset there and the test sees the real failure path.
Root cause: #115 made `AuthModule` import `SessionModule` so `AuthController` could inject `UserSessionIndexService`. `SessionModule` pulls in `RedisModule`, whose factory calls `assertRedisConfig()` and refuses to compile without `REDIS_URL`. The existing `auth.module.spec.ts` only set the `ENTRA_*` env vars — so as soon as the spec's `compile()` walks the new import graph, `assertRedisConfig` throws.
Fix is one file: add `REDIS_URL`, `SESSION_SECRET`, `SESSION_ENCRYPTION_KEY` to the spec's `VALID` env block and dispose the `ioredis` client in `afterEach` (the spec now compiles a full SessionModule, which opens a connection at module init). Same pattern as `session.module.spec.ts`.
## Verification
The reason the bug didn't surface locally was Nx's `.env` loading. To repro the CI condition locally:
```
env -u REDIS_URL -u SESSION_SECRET -u SESSION_ENCRYPTION_KEY -u DATABASE_URL \
-u ENTRA_INSTANCE_URL -u ENTRA_TENANT_ID -u ENTRA_CLIENT_ID \
-u ENTRA_CLIENT_SECRET -u ENTRA_REDIRECT_URI -u ENTRA_POST_LOGOUT_REDIRECT_URI \
pnpm exec nx test portal-bff --skip-nx-cache
```
Before this PR (on main): `auth.module.spec.ts` fails with `REDIS_URL is not set` at `assertRedisConfig`. After: 123/123 pass under that same clean env.
## Test plan
- [x] `nx test portal-bff` with all BFF env vars `unset` → **123/123 pass** (the CI condition).
- [x] `nx lint portal-bff` → clean.
- [x] `nx build portal-bff` → clean.
- [x] Prettier-clean.
- [ ] CI re-run after merge → `ci:check` green.
---------
Co-authored-by: Julien Gautier <julien.gautier@apf.asso.fr>
Reviewed-on: #116
julien
c427e5d4fe