Runner artefacts lot 6 : Niskara (1604, Lord Perdition) + Terres de Feu (1605, Infernal ardent 102398)

Config data ~/dc-patches/artifact_batch6.sql, options 46/47 du Gardien.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/server/scripts/BrokenIsles/Scenario/scenario_artifact_runner.cpp

@@ -264,4 +264,8 @@ void AddSC_scenario_artifact_runner()
     REGISTER_ARTIFACT_RUNNER(1620);
     // Arcway (Suramar) - Duskwatch
     REGISTER_ARTIFACT_RUNNER(1632);
+    // Niskara - invasion (monde de la Legion)
+    REGISTER_ARTIFACT_RUNNER(1604);
+    // Terres de Feu - la Fournaise
+    REGISTER_ARTIFACT_RUNNER(1605);
 }