fix(ttp): expand R0054/R0055/R0057 emits + LAST_REVIEWED markers

The IntelLifter's _emit_filtered fans out only the rule.emits entries
whose technique_id appears in the predicate's decision set. v1's emits
lists were narrow supersets of the common case, silently dropping the
rest of the predicate's possible emissions:

  R0054 dropped: T1046 (cat 14), T1078 (cat 20), T1090 (cats 9/13),
                 T1496 (cat 11), T1595 (cats 14/19)
  R0055 dropped: T1090 (tor_exit_node), T1110 (ssh_bruteforcer),
                 T1588 (the second emit of every C2-framework tag)
  R0057 dropped: T1105 (payload_delivery, download_url)

Bump rule_version 1->2 on R0054/R0055/R0057, expand emits to cover
every technique the predicate produces. R0056 (Feodo) and R0058
(aggregate bump) carry no enum and stay at v1.

All five YAMLs gain `last_reviewed: "2026-05-02"` and
`next_review: "2026-08-02"` markers; the rule YAML is now the
canonical record of when the mapping was last reconciled against
upstream, with DEBT.md as the calendar reminder.

rules/ttp/R0057.yaml

@@ -1,9 +1,20 @@
 rule_id: R0057
-rule_version: 1
-name: threatfox_ioc
+rule_version: 2
+last_reviewed: "2026-05-02"
+next_review: "2026-08-02"
+name: threatfox_threat_type
 description: |
-  abuse.ch ThreatFox IOC type → ATT&CK technique mapping with
+  abuse.ch ThreatFox ``threat_type`` → ATT&CK technique mapping with
   family attribution.
+
+  v2 (2026-05-02 ship-time audit): keys on ``threat_type`` (the
+  canonical ThreatFox taxonomy) instead of ``ioc_type`` — v1 had it
+  backwards, ``ioc_type`` is the indicator format (url / domain /
+  hash) and carries no ATT&CK signal. Also expanded ``emits`` to
+  include T1105 (payload_delivery) and T1056 (cc_skimming) which v1
+  silently dropped, and the lifter now reads from the bus payload
+  fields ``threatfox_threat_types`` (list) populated by the intel
+  worker.
 applies_to:
   - intel
 match:
@@ -17,7 +28,13 @@ emits:
     technique_id: T1588
     sub_technique_id: T1588.001
     confidence: 0.8
+  - tactic: TA0011
+    technique_id: T1105
+    confidence: 0.75
+  - tactic: TA0009
+    technique_id: T1056
+    confidence: 0.7
 evidence_fields:
-  - ioc_type
-  - malware_family
-  - threat_type
+  - threatfox_threat_types
+  - threatfox_ioc_types
+  - threatfox_malware_families