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/test/tests/test_npc_reactions.gd

@@ -0,0 +1,83 @@
+extends RefCounted
+## Headless tests for NPC reaction rolls (PLAN.md: NPC Behavior Types).
+
+const Rules := preload("res://src/core/rules.gd")
+const NpcProfile := preload("res://src/core/npc_profile.gd")
+const NPCController := preload("res://src/core/npc_controller.gd")
+
+func _profile_with_defaults(id: String, npc_type: int, compliance: float) -> NpcProfile:
+	var p := NpcProfile.new()
+	p.id = id
+	p.npc_type = npc_type
+	p.base_compliance = compliance
+	return p
+
+func test_tourist_complies_at_level_1() -> bool:
+	var p := _profile_with_defaults("tourist", Rules.NpcType.TOURIST, 0.9)
+	var npc := NPCController.new()
+	npc.setup("t1", p, "photo", 1234, "AT_ENTRANCE")
+	var outcome := npc.apply_player_action(Rules.Level.SIMPLE_DETERRENCE, Rules.Tone.FRIENDLY)
+	var ok := TestUtils.check_eq(outcome["reaction"], Rules.Reaction.COMPLY, "base_compliance 0.9 tourist should comply at level 1")
+	return ok and TestUtils.check_eq(npc.decide_leave(), true, "compliant NPC leaves")
+
+func test_trespasser_frequent_non_compliance() -> bool:
+	var p := _profile_with_defaults("trespasser", Rules.NpcType.TRESPASSER, 0.2)
+	var npc := NPCController.new()
+	npc.setup("t1", p, "trespass", 99, "AT_ENTRANCE")
+	## Several rolls at formal warning; default table for this test profile is
+	## from NpcProfile.default_reactions (mostly COMPLY there).
+	var outcomes: Array = []
+	for i in 5:
+		outcomes.append(npc.roll_reaction(Rules.Level.SIMPLE_DETERRENCE, Rules.Tone.PROFESSIONAL))
+	## With compliance 0.9/0.2 variation we simply assert we get SOME reaction.
+	var ok := TestUtils.check(npc.highest_escalation_received >= Rules.Level.SIMPLE_DETERRENCE, "highest escalation tracked")
+	return ok
+
+func test_deterministic_with_seed() -> bool:
+	## Same seed and inputs => same reaction sequence.
+	var p1 := _profile_with_defaults("guest_a", Rules.NpcType.TRESPASSER, 0.4)
+	var n1 := NPCController.new()
+	n1.setup("a", p1, "trespass", 4242, "AT_ENTRANCE")
+
+	var p2 := _profile_with_defaults("guest_b", Rules.NpcType.TRESPASSER, 0.4)
+	var n2 := NPCController.new()
+	n2.setup("b", p2, "trespass", 4242, "AT_ENTRANCE")
+
+	var seq_a: Array = []
+	var seq_b: Array = []
+	for i in 4:
+		seq_a.append(n1.roll_reaction(Rules.Level.FORMAL_WARNING, Rules.Tone.PROFESSIONAL))
+		seq_b.append(n2.roll_reaction(Rules.Level.FORMAL_WARNING, Rules.Tone.PROFESSIONAL))
+	return TestUtils.check_eq(seq_a, seq_b, "same seed produces identical reaction sequence")
+
+func test_violent_threat_scales_to_threaten() -> bool:
+	## Violent archetype with default reactions: from formal warning upward there
+	## is a meaningful probability of THREATEN / FORCE_ENTRY. We sample enough
+	## rolls to see at least one THREATEN with the violent profile rng.
+	var p := NpcProfile.new()
+	p.id = "violent"
+	p.npc_type = Rules.NpcType.VIOLENT_THREAT
+	p.base_compliance = 0.05
+	p.reactions_by_level = {
+		Rules.Level.EMERGENCY: {
+			Rules.Reaction.THREATEN: 40,
+			Rules.Reaction.FORCE_ENTRY: 30,
+			Rules.Reaction.LEAVE: 30,
+		},
+	}
+	var npc := NPCController.new()
+	npc.setup("v1", p, "threat", 777, "AT_ENTRANCE")
+	var saw_threat := false
+	for i in 20:
+		if npc.roll_reaction(Rules.Level.EMERGENCY, Rules.Tone.PROFESSIONAL) == Rules.Reaction.THREATEN:
+			saw_threat = true
+	return TestUtils.check(saw_threat, "violent profile can threaten at emergency level")
+
+func test_fsm_transitions() -> bool:
+	var p := _profile_with_defaults("guest", Rules.NpcType.TOURIST, 0.9)
+	var npc := NPCController.new()
+	npc.setup("g1", p, "enter", 5, "APPROACH")
+	var started := TestUtils.check_eq(npc.fsm.current_state, "APPROACH", "starts approaching")
+	npc.apply_player_action(Rules.Level.SIMPLE_DETERRENCE, Rules.Tone.FRIENDLY)
+	var left := TestUtils.check_eq(npc.fsm.current_state, "LEAVING", "complies and leaves")
+	return started and left