P14-02: Add buildable Mana warp (A07)

2x2 FRONT warp at 3000G/30 materials/360 min, 15G/day and 1 Mana upkeep.
Every completed warp pair is linked by one path connector, so crossing is a
single step; a 3-Mana fare per rider is charged once in the step's tick.
Warps close while either end is unpowered, the reserve is empty or below one
fare, and blocked arrivals offer no step. Saves validate the derived links.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

data/facilities/infrastructure/mana_warp.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_warp"
+display_name = "マナワープ"
+description = "建設済みの全ワープと瞬時につながる表層の転移陣。客と接客中の従業員が1回3マナで移動する。"
+zone = 0
+layer = 0
+footprint = Vector2i(2, 2)
+construction_cost = {&"gold": 3000, &"materials": 30}
+build_minutes = 360
+weight_per_cell = 3
+pass_through = true
+maintenance_gold = 15
+maintenance_mana = 1
+power_priority = 80
+staff_min = 0
+staff_max = 0
+capacity = 4
+queue_capacity = 0
+base_service_minutes = 1
+base_quality = 50
+base_price = 0
+tags = Array[StringName]([&"guest_access", &"movement", &"schema_facility_proxy", &"warp"])