Add the four crowd-variety characters and extend the baseline to twelve

src/test/capture_npc_baseline.gd

@@ -27,6 +27,10 @@ const VARIANTS := [
 	{"name": "npc_hoodie", "type": Rules.NpcType.VIOLENT_THREAT},
 	{"name": "npc_firefighter", "type": Rules.NpcType.RESPONDER},
 	{"name": "npc_guard", "type": Rules.NpcType.CONFUSED_VISITOR},
+	{"name": "npc_crowd_a", "type": Rules.NpcType.TOURIST},
+	{"name": "npc_crowd_b", "type": Rules.NpcType.CONFUSED_VISITOR},
+	{"name": "npc_crowd_c", "type": Rules.NpcType.INTOXICATED},
+	{"name": "npc_crowd_d", "type": Rules.NpcType.TOURIST},
 ]
 ## Camera orbits the subject at yaw 0 (front = Godot +Z). Portrait views keep
 ## the eye/head in frame; the last two show the full body and crowd silhouette.