fix(test): de-calendar employers auth wall-clock pin (CI #149 red triage)

apps/ai-service/tests/employers/test_auth.py

@@ -120,7 +120,9 @@ class TestSessionGate:
         T+8d → the session reads as absent → 401 (no sleeps)."""
         from .conftest import make_client
 
-        login_at = datetime(2026, 9, 30, 12, 0, 0, tzinfo=UTC)
+        # Wall-clock-relative mint: the 200 arm below must hold on ANY
+        # run date (the fixed 2026-09-30 mint turned red at 2026-10-07+).
+        login_at = datetime.now(UTC) - timedelta(days=1)
         employer_store.insert_account(
             email=TEST_EMAIL, password_hash="scrypt$16384$8$1$c2FsdA$aGFzaA"
         )
@@ -140,7 +142,7 @@ class TestSessionGate:
             )
             assert row is None  # expired — reads as absent
             resp = c.get("/v1/employers/auth/me", headers=bearer("expired-token"))
-            # Wall clock (2026-09-30) is INSIDE the 7-day TTL → 200.
+            # Wall clock (1d after mint) is INSIDE the 7-day TTL → 200.
             assert resp.status_code == 200
         # The lazy-TTL route 401 pin: a session whose expires_at is in
         # the WALL-CLOCK past reads as absent at the route.