Implement NPC perception, returning trespassers, responder dispatch, wand screening, and accessibility polish

src/core/npc_profile.gd

@@ -16,6 +16,11 @@ const Rules := preload("res://src/core/rules.gd")
 ## Venue/scenario recalculates effective compliance from profile + tone + level.
 @export_range(0.0, 1.0) var base_compliance: float = 0.8
 
+## Probability that an NPC directed away will circle back later in the shift
+## (returning-trespasser behavior). 0 = never returns. Trespassers and people
+## in crisis are more likely to return than tourists.
+@export_range(0.0, 1.0) var return_probability: float = 0.0
+
 ## Probability weighting of the NP C's reaction per player escalation level.
 ## keys: escalation level int -> { ReactionEnum: weight }
 ## Missing entries fall back to the profile's `default_reactions`.
@@ -64,6 +69,10 @@ const Rules := preload("res://src/core/rules.gd")
 ## Dialogue lines per tone and intent. Falls back to generic lines when empty.
 @export var dialogue_lines: Dictionary = {}
 
+## Items the NPC is carrying, used by the handheld wand (The Joke Shop).
+## Values are item names: "keys", "belt", "phone", "weapon", "knife", etc.
+@export var carried_items: Array[String] = []
+
 func pickup_reactions_per_level(level: int) -> Dictionary:
 	if reactions_by_level.has(level):
 		return reactions_by_level[level]