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/venue_scenario.gd

@@ -0,0 +1,49 @@
+class_name VenueScenario
+extends Resource
+
+const Rules := preload("res://src/core/rules.gd")
+const AccessPolicy := preload("res://src/core/access_policy.gd")
+const NpcProfile := preload("res://src/core/npc_profile.gd")
+## Data-driven venue definition (ADR-0001). Provides locations, rules,
+## NPC pools, event pools, equipment, and shift phases.
+
+@export var id: String = ""
+@export var display_name: String = ""
+@export_multiline var description: String = ""
+
+@export var access_policy: AccessPolicy = AccessPolicy.new()
+
+## Equipment available at this venue.
+@export var equipment: Array[String] = [] # e.g. "wristband_policy", "id_check", "wand", "flashlight"
+
+## Named spots: "guard_post", "entrance", "steps", "sidewalk", "queue_area".
+@export var locations: Dictionary = {}
+
+## NPC archetype definitions that appear in this scenario.
+@export var npc_profiles: Array[NpcProfile] = []
+
+## Event pool. Each event: { id, phase: Rules.Phase, kind: "routine"|"scripted",
+##   npc_type: int, intent: String, weight: float, probability: float,
+##   time_range_s: Vector2, requires_emergency: bool }
+@export var event_pool: Array[Dictionary] = []
+
+## Shift setup: phases map Rules.Phase -> { start_s, end_s, spawn_rate }.
+@export var shift_phases: Dictionary = {}
+
+## Default duration of one shift in seconds (PLAN.md: 10-15 minutes).
+@export var shift_duration_s: float = 900.0
+
+@export var policy_summary: String = ""
+
+func profile_for(npc_type: int) -> NpcProfile:
+	for p in npc_profiles:
+		if p.npc_type == npc_type:
+			return p
+	return null
+
+func events_in_phase(phase: int) -> Array[Dictionary]:
+	var result: Array[Dictionary] = []
+	for event in event_pool:
+		if event.get("phase", -1) == phase:
+			result.append(event)
+	return result