feat: add thin Evennia to Nexus event adapter

nexus/perception_adapter.py

@@ -199,6 +199,56 @@ def perceive_action_result(data: dict) -> Optional[Perception]:
     )
 
 
+def perceive_evennia_actor_located(data: dict) -> Optional[Perception]:
+    actor = data.get("actor_id", "Timmy")
+    room = data.get("room_name") or data.get("room_key") or data.get("room_id")
+    if not room:
+        return None
+    return Perception(
+        timestamp=time.time(),
+        raw_type="evennia.actor_located",
+        description=f"{actor} is now in {room}.",
+        salience=0.7,
+    )
+
+
+def perceive_evennia_room_snapshot(data: dict) -> Optional[Perception]:
+    title = data.get("title") or data.get("room_key") or data.get("room_id")
+    desc = data.get("desc", "")
+    exits = ", ".join(exit.get("key", "") for exit in data.get("exits", []) if exit.get("key"))
+    objects = ", ".join(obj.get("key", "") for obj in data.get("objects", []) if obj.get("key"))
+    if not title:
+        return None
+    parts = [f"You are in {title}."]
+    if desc:
+        parts.append(desc)
+    if exits:
+        parts.append(f"Exits: {exits}.")
+    if objects:
+        parts.append(f"You see: {objects}.")
+    return Perception(
+        timestamp=time.time(),
+        raw_type="evennia.room_snapshot",
+        description=" ".join(parts),
+        salience=0.85,
+    )
+
+
+def perceive_evennia_command_result(data: dict) -> Optional[Perception]:
+    success = data.get("success", True)
+    command = data.get("command_text", "your command")
+    output = data.get("output_text", "")
+    desc = f"Your world command {'succeeded' if success else 'failed'}: {command}."
+    if output:
+        desc += f" {output[:240]}"
+    return Perception(
+        timestamp=time.time(),
+        raw_type="evennia.command_result",
+        description=desc,
+        salience=0.8,
+    )
+
+
 # Registry of WS type → perception function
 PERCEPTION_MAP = {
     "agent_state":      perceive_agent_state,
@@ -212,6 +262,9 @@ PERCEPTION_MAP = {
     "action_result":    perceive_action_result,
     "heartbeat":        lambda _: None,  # Ignore
     "dual_brain":       lambda _: None,  # Internal — not part of sensorium
+    "evennia.actor_located": perceive_evennia_actor_located,
+    "evennia.room_snapshot": perceive_evennia_room_snapshot,
+    "evennia.command_result": perceive_evennia_command_result,
 }