Implement prototype: venue-driven simulation core, scenarios, tests, and playable entrance scene

- Godot 4.3 project scaffold with first-person guard, procedural world,
  interaction HUD, access inspection, radio forms, debug overlay, shift review
- Simulation core: ShiftCoordinator, VenueScenario, EventScheduler, NPCController/FSM,
  AccessVerifier, EscalationManager, RadioSystem, IncidentRecorder,
  ReputationEvaluator, CrowdSystem, EventBus
- Three authored scenarios (Hollywood Blvd building, The Joke Shop, TV studio)
- Custom headless test runner (25 tests) replacing editor-dependent GUT,
  plus GitHub Actions CI
- Documentation workflow live: README, PLAN (tech stack), TODO/DONE, MEMORY

src/core/npc_profile.gd

@@ -0,0 +1,70 @@
+class_name NpcProfile
+extends Resource
+
+const Rules := preload("res://src/core/rules.gd")
+## Authorable behavior profile for one kind of NPC (PLAN.md: NPC Behavior Types).
+
+@export var id: String = ""
+@export var display_name: String = ""
+@export var npc_type: int = Rules.NpcType.TOURIST
+
+## How difficult temperament is (0 = very calm, 1 = very hot-headed).
+## Affects how likely the NPC is to argue, point, or threaten at each level.
+@export_range(0.0, 1.0) var temperament: float = 0.25
+
+## Base compliance: probability the NPC obeys a level-1 polite direction.
+## Venue/scenario recalculates effective compliance from profile + tone + level.
+@export_range(0.0, 1.0) var base_compliance: float = 0.8
+
+## 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`.
+@export var reactions_by_level: Dictionary = {}
+
+@export var default_reactions: Dictionary = {
+	Rules.Level.SIMPLE_DETERRENCE: {
+		Rules.Reaction.COMPLY: 80,
+		Rules.Reaction.IGNORE: 12,
+		Rules.Reaction.ARGUE: 8,
+	},
+	Rules.Level.FORMAL_WARNING: {
+		Rules.Reaction.COMPLY: 70,
+		Rules.Reaction.LEAVE: 10,
+		Rules.Reaction.ARGUE: 12,
+		Rules.Reaction.RECORD: 8,
+	},
+	Rules.Level.BLOCKING: {
+		Rules.Reaction.COMPLY: 55,
+		Rules.Reaction.LEAVE: 15,
+		Rules.Reaction.ARGUE: 20,
+		Rules.Reaction.RECORD: 10,
+	},
+	Rules.Level.RADIO_ASSIST: {
+		Rules.Reaction.LEAVE: 65,
+		Rules.Reaction.ARGUE: 15,
+		Rules.Reaction.FORCE_ENTRY: 20,
+	},
+	Rules.Level.EMERGENCY: {
+		Rules.Reaction.FORCE_ENTRY: 30,
+		Rules.Reaction.THREATEN: 40,
+		Rules.Reaction.LEAVE: 30,
+	},
+}
+
+@export var tone_modifiers: Dictionary = {
+	Rules.Tone.FRIENDLY: 0.10,   # + compliance
+	Rules.Tone.PROFESSIONAL: 0.00,
+	Rules.Tone.FIRM: -0.05,
+	Rules.Tone.SUSPICIOUS: -0.15,
+}
+
+## Delay the NPC waits before reacting to the player (frames/seconds scaled).
+@export_range(0.1, 5.0) var reaction_delay: float = 0.6
+
+## Dialogue lines per tone and intent. Falls back to generic lines when empty.
+@export var dialogue_lines: Dictionary = {}
+
+func pickup_reactions_per_level(level: int) -> Dictionary:
+	if reactions_by_level.has(level):
+		return reactions_by_level[level]
+	return default_reactions.get(level, {})