Preserve approved pixel tower prototype as development baseline

data/facilities/expansion/mana_control_room.tres

@@ -0,0 +1,27 @@
+[gd_resource type="Resource" script_class="FacilityDefinition" load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://scripts/data/facility_definition.gd" id="1"]
+
+[resource]
+script = ExtResource("1")
+id = &"mana_control_room"
+display_name = "魔力制御室"
+description = "地下の魔力供給、蓄積、優先配電を管理する高重要度のBACK設備。"
+zone = 3
+layer = 1
+footprint = Vector2i(3, 2)
+construction_cost = {&"gold": 1800, &"materials": 18}
+build_minutes = 300
+weight_per_cell = 3
+maintenance_mana = 1
+power_priority = 100
+staff_min = 1
+staff_max = 2
+required_roles = Array[StringName]([&"maintenance"])
+primary_skill = &"operation"
+capacity = 40
+queue_capacity = 2
+base_service_minutes = 1
+base_quality = 65
+base_price = 0
+tags = Array[StringName]([&"back_of_house", &"expansion", &"mana_infrastructure", &"staff_only", &"underground"])