Add D&D enemy event extractor

internal/modules/dnd/extract/enemyevents/assets/prompts/task.md

@@ -0,0 +1,20 @@
+Extract Dungeons & Dragons enemy events from the supplied combat transcript.
+
+Return an `engaged` event only when the transcript directly establishes that a
+subject is actively opposing the party in combat. Return `killed`, `fled`,
+`captured`, or `incapacitated` only when the transcript explicitly establishes
+that outcome. An outcome may share evidence with an engagement, and a later
+engagement or outcome for the same subject remains a separate observation.
+Emit at most one engagement for the same subject in this combat scene.
+
+For `killed`, direct death or killing is required. For `fled`, the subject must
+explicitly escape, retreat, or leave combat to avoid continued engagement. For
+`captured`, the subject must be explicitly taken prisoner or secured under the
+party's control. For `incapacitated`, the subject must be explicitly unable to
+continue acting without being established as killed or captured.
+
+Use a normalized NPC registry spelling when the transcript identifies that
+named NPC. A hostile creature without a registry entry is allowed. For unnamed
+individuals or groups, use only the narrowest transcript-grounded label, such
+as `Orcs`, `One orc`, or `Remaining orcs`; never invent member names, IDs, or
+quantities.