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/reputation_evaluator.gd

@@ -0,0 +1,54 @@
+class_name ReputationEvaluator
+extends RefCounted
+## Evaluates player performance (PLAN.md: Reputation Meter).
+## Scoring weights are data so they can be tuned per venue.
+
+const EventBus := preload("res://src/core/event_bus.gd")
+
+## rating: float starting 50 (out of 100). Errors subtract, though marks add.
+var rating: float = 70.0
+var _modifiers: Array[Dictionary] = []
+var event_bus: EventBus = null
+
+func set_event_bus(bus: EventBus) -> void:
+	event_bus = bus
+
+## Apply a reputation change.
+## category: "peaceful", "force", "false_report", "accuracy", "complaint",
+##           "security_failure", "property_damage", "access_judgment", "crowd"
+func apply(_category: String, delta: float, reason: String) -> void:
+	# Clamp range: 0..100.
+	var clamped := clampf(rating + delta, 0.0, 100.0)
+	var applied: float = clamped - rating
+	rating = clamped
+	_modifiers.append({
+		"category": _category,
+		"delta": applied,
+		"reason": reason,
+		"at_ms": Time.get_ticks_msec(),
+	})
+	if event_bus:
+		event_bus.reputation_changed.emit({
+			"rating": rating,
+			"delta": applied,
+			"reason": reason,
+			"category": _category,
+		})
+
+static func grade_for(rating_value: float) -> String:
+	if rating_value >= 90.0:
+		return "A"
+	if rating_value >= 75.0:
+		return "B"
+	if rating_value >= 60.0:
+		return "C"
+	if rating_value >= 40.0:
+		return "D"
+	return "F"
+
+func summary() -> Dictionary:
+	return {
+		"rating": rating,
+		"grade": grade_for(rating),
+		"modifiers": _modifiers.duplicate(true),
+	}