Removes the E.3.14b xfail marker and writes the test body:
- _StubRepo gains get_attacker_intel_row_by_uuid(uuid) backed by an
optional intel_rows dict; existing tests pass None (no catch-up, no
change to their behaviour).
- The test drives a session.ended event with NO intel.enriched published,
injects an AttackerIntel row into the stub repo, and asserts the
tagger is called with source_kind='intel' carrying the correct payload
fields (abuseipdb_score, greynoise_classification).
- Pins the asymmetry contract: email.received has no catch-up path
(sibling test already green); intel does.
anti
c39b63a431