Move NPC occurrences to their canonical namespace

docs/integrations/dnd-combat-turn-artifacts.md

@@ -63,7 +63,7 @@ chronology; and collapses only duplicates with the same actor identity, turn
 kind, and complete valid evidence. It does not infer turns, initiative, or
 actions from registry or scene data.
 
-The [NPC-interaction artifact](dnd-npc-interaction-artifacts.md) records
+The [NPC-occurrence artifact](dnd-npc-occurrence-artifacts.md) records
 broader NPC occurrences. The [enemy-event artifact](dnd-enemy-event-artifacts.md)
 uses combat turns as grounding only; turns do not establish an enemy event or
 its outcome. The [JSON output contract](json-output.md) defines publication,

docs/integrations/dnd-enemy-event-artifacts.md

@@ -66,7 +66,7 @@ are positive and the start may not follow the end.
 | `incapacitated` | The subject is explicitly rendered unable to continue acting without being established as killed or captured. A missed turn is insufficient. |
 
 The current transcript is the only event evidence. Campaign context and
-normalized NPC, scene-description, combat-turn, and NPC-interaction artifacts
+normalized NPC, scene-description, combat-turn, and NPC-occurrence artifacts
 can ground names or control combat eligibility, but none may supply event
 evidence. An outcome may share evidence with an engagement, in which case both
 events are retained.

docs/integrations/dnd-item-event-artifacts.md

@@ -74,5 +74,5 @@ valid evidence.
 
 The [JSON output contract](json-output.md) defines publication. See
 [D&D module internals](../internal/dnd.md) for implementation details and the
-[NPC-interaction artifact](dnd-npc-interaction-artifacts.md) for a distinct
+[NPC-occurrence artifact](dnd-npc-occurrence-artifacts.md) for a distinct
 kind of occurrence.

docs/integrations/dnd-npc-occurrence-artifacts.md

@@ -1,7 +1,7 @@
-# D&D NPC Interaction Artifact
+# D&D NPC Occurrence Artifact
 
 This contract defines the durable occurrence list produced by
-`dnd/npc-interactions`. It records discrete, source-grounded interactions with
+`dnd/npc-occurrences`. It records discrete, source-grounded occurrences with
 NPCs already present in a normalized registry; it does not extend that registry
 or summarize the session.
 
@@ -27,13 +27,13 @@ Each occurrence has these required fields:
 | --- | --- |
 | `npc_id` | Exact durable ID from the required NPC registry. |
 | `name` | Non-empty canonical display name from the required NPC registry. |
-| `kind` | One of the interaction categories below. |
+| `kind` | One of the occurrence categories below. |
 | `source_refs` | One or more transcript evidence ranges. |
 
 Each source reference has exactly `source_id`, `start_unit_id`, and
 `end_unit_id`. It identifies an inclusive range in the current transcript;
 unit IDs are positive and the start may not follow the end. Extraction evidence
-for an interaction is confined to its accepted chunk.
+for an occurrence is confined to its accepted chunk.
 
 ```json
 {
@@ -50,7 +50,7 @@ for an interaction is confined to its accepted chunk.
 }
 ```
 
-## Interaction categories
+## Occurrence categories
 
 | Kind | Meaning |
 | --- | --- |
@@ -70,16 +70,16 @@ for uncertain classification.
 The required normalized [NPC registry artifact](dnd-npc-registry-artifacts.md) resolves
 the exact `{npc_id, name}` pair. Unknown IDs and names that do not match their
 ID are rejected; normalization does not repair names by similarity. Registry
-references are provenance only and never replace an interaction's own evidence.
+references are provenance only and never replace an occurrence's own evidence.
 Normalization validates the exact pair, orders and
-deduplicates exact source references, then orders interactions by valid source
+deduplicates exact source references, then orders occurrences by valid source
 chronology, NPC comparison identity, display name, kind, and reference sequence.
 Only entries with the same NPC ID, canonical name, kind, and complete valid evidence
 sequence are collapsed; distinct categories or evidence remain separate.
 
 See the [combat-turn artifact](dnd-combat-turn-artifacts.md) for combat-action
 occurrences. The [enemy-event artifact](dnd-enemy-event-artifacts.md) consumes
-only `combat_opponent` interactions as grounding; they never establish an enemy
+only `combat_opponent` occurrences as grounding; they never establish an enemy
 event or outcome. The [JSON output contract](json-output.md) defines
 publication. Pipeline mechanics are described in
 [D&D module internals](../internal/dnd.md).

docs/integrations/dnd-npc-registry-artifacts.md

@@ -70,12 +70,12 @@ descriptor.
 Only individually identifiable NPC names with transcript evidence belong in
 this artifact. Groups, generic roles, invented labels, and descriptive
 enrichment are excluded. Its source references prove registry provenance; they
-do not become evidence for a spell, interaction, combat, or enemy-event
+do not become evidence for a spell, occurrence, combat, or enemy-event
 occurrence.
 
 This registry can ground actor or caster names in the [spell](dnd-spell-artifacts.md)
 and [combat-turn](dnd-combat-turn-artifacts.md) artifacts. It is required to
-resolve the canonical `name` in an [NPC interaction](dnd-npc-interaction-artifacts.md).
+resolve the canonical `name` in an [NPC occurrence](dnd-npc-occurrence-artifacts.md).
 The [enemy-event artifact](dnd-enemy-event-artifacts.md) also uses it only for
 subject grounding and canonical display names.
 The [JSON output contract](json-output.md) defines publication, and

docs/integrations/json-output.md

@@ -72,7 +72,7 @@ Each `lanes/<safe-lane-id>.json` file is the codec-owned normalized JSON for
 that lane. Consumers should use the index descriptor’s schema identity rather
 than infer a lane schema from its name. The current D&D payload contracts are
 [spells](dnd-spell-artifacts.md), [NPC registry](dnd-npc-registry-artifacts.md),
-[NPC interactions](dnd-npc-interaction-artifacts.md),
+[NPC occurrences](dnd-npc-occurrence-artifacts.md),
 [combat turns](dnd-combat-turn-artifacts.md),
 [item events](dnd-item-event-artifacts.md),
 [scene descriptions](dnd-scene-description-artifacts.md), and