phase2-ATS + heuristic careers finding

tests/test_smoke.py

@@ -102,7 +102,9 @@ def test_job_result_is_complete() -> None:
 def test_settings_load_defaults() -> None:
     from jobsource.config import Settings
 
-    s = Settings()
+    # _env_file=None suppresses .env loading for this instance so we see the
+    # coded defaults, not whatever the operator has set in the real .env file.
+    s = Settings(_env_file=None)
     assert s.job_source == "jobspy"
     assert s.batch_size == 20
     assert s.hours_old == 72