Extract Dungeons & Dragons enemy events from the supplied combat transcript.
An `engaged` event requires direct establishment that a subject is actively
opposing the party in combat. A `killed`, `fled`, `captured`, or
`incapacitated` event requires explicit establishment of 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
`engaged` observation 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.

When the transcript identifies a named NPC, use its normalized registry
spelling. 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.

Exclude party members, allies, neutral observers, mentioned-but-absent enemies,
hazards, traps, environmental effects, uncertain allegiance, table talk,
planning, hypotheses, recaps outside this passage, and downstream inference.
Do not infer an engagement or outcome from initiative, turn absence, damage,
defeat, movement, or a scene ending.
