iter47-卡2：卡④(迭代47·营地场景图新建批): 十层素材落地+CampSceneView场景图+layout表fail-fast+四柜台拆解五子界面+大门篝火动线+断言迁移批+审计补差——CampOverlay退役全仓零残留

game/presentation/views/tree_view.gd

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+## 天赋树子界面（自 CampOverlay 树淬炼柜台抽出——承载面迁移，界面逻辑复用零重设计）：
+## 树脊柱界面形态=主界面（脉分组行板：节点名/等级/价/购买钮＋Fork 双态切换钮段）。
+## UI 只发意图信号（写口唯一归 MetaProgression.tree_buy/tree_buy_fork/tree_toggle_fork）。
+class_name TreeView
+extends CampSubViewBase
+
+signal tree_buy_requested(node_id: String)               ## 天赋树购买意图（写口唯一归 MetaProgression.tree_buy）
+signal tree_fork_toggled(group: String, side: String)    ## 双态切换意图（一节点双态——零币切态）
+
+var _tree_holder: VBoxContainer                # 树淬炼内容（脊柱两行+钥匙/socket 行板+Fork 双态钮段）
+var _tree_buy_btns: Array[Dictionary] = []     # [{node_id, btn}]——树购买/解锁钮登记面（open/refresh 重建时刷新；探针消费）
+var _tree_fork_btns: Array[Dictionary] = []    # [{group, side, btn}]——Fork 双态切换钮登记面（探针消费）
+
+
+func _init() -> void:
+	_tree_holder = VBoxContainer.new()
+	_tree_holder.add_theme_constant_override("separation", 6)
+	var tree_scroll := ScrollContainer.new()
+	tree_scroll.custom_minimum_size = Vector2(300, 336)
+	tree_scroll.size_flags_vertical = Control.SIZE_EXPAND_FILL
+	tree_scroll.horizontal_scroll_mode = ScrollContainer.SCROLL_MODE_DISABLED
+	tree_scroll.add_child(_tree_holder)
+	var content := VBoxContainer.new()
+	content.add_child(tree_scroll)
+	_build_shell("天赋树 · 淬炼", "", content)
+
+
+func refresh_camp(data: Dictionary) -> void:
+	_balance_label.text = "钥石 %d" % int(data.get("balance", 0))
+	_rebuild_tree(data)
+
+
+# 天赋树段重建（脉分组行板：节点名/等级/价/购买钮 + Fork 双态切换钮；
+# 树数据 = 组合根 _camp_data().tree 投影 [{node_id, display_name, vein, kind, level, price, can_buy,
+# currency}...] + fork_groups [{group, node_id, active_side, owned, can_buy, price, sides:[{side, display_name, effects}]}]）
+func _rebuild_tree(data: Dictionary) -> void:
+	for c in _tree_holder.get_children():
+		c.queue_free()
+	_tree_buy_btns.clear()
+	_tree_fork_btns.clear()
+	var tree: Array[Variant] = data.get("tree", []) as Array
+	var forks: Array[Variant] = data.get("fork_groups", []) as Array
+	var vein_names := {"spine": "·脊柱淬炼·", "forge": "·锻造脉·", "keystone": "·钥石脉·", "attune": "·同调脉·"}
+	var last_vein := ""
+	for row in tree:
+		var vein := String(row.get("vein", ""))
+		if vein != last_vein:
+			last_vein = vein
+			var vh := UiKit.label(String(vein_names.get(vein, vein)), UiKit.FS_HINT, true, UiKit.GOLD_INK)   # GOLD_DEEP 对柜台板 2.67:1 越带，换深金墨 5.21:1
+			_tree_holder.add_child(vh)
+		if String(row.get("kind", "")) == "fork":
+			continue   # Fork 行去行板化——由 fork_groups 段承载双态切换钮
+		_tree_holder.add_child(_tree_row_line(row))
+	for fg in forks:
+		_tree_holder.add_child(_tree_fork_line(fg))
+
+
+## 树行板构建域：节点名（含门槛标记）+购买钮（追加序与锚句随段整体搬迁）
+func _tree_row_line(row: Dictionary) -> HBoxContainer:
+	var hb := HBoxContainer.new()
+	hb.add_theme_constant_override("separation", 6)
+	var lvl := int(row.get("level", 0))
+	var cap := int(row.get("cap", 1))
+	var name_l := UiKit.label("%s Lv%d/%d" % [String(row.get("display_name", "")), lvl, cap], 13, false, UiKit.INK_LABEL)
+	name_l.custom_minimum_size = Vector2(150, 0)
+	name_l.clip_text = true
+	var gate := String(row.get("gate_text", ""))
+	if gate != "":
+		name_l.text += " 🔒"   # 等级阈值前置未达标标记（R1 机制位——悬停看门槛；达标后随 refresh 消失）
+		name_l.tooltip_text = "等级门槛：%s" % gate
+	hb.add_child(name_l)
+	var btn := UiKit.button("购买 %d 钥石" % int(row.get("price", 0)), 0.0)   # 柜台行板紧凑钮豁免宽度基准
+	btn.pressed.connect(func(): tree_buy_requested.emit(String(row.get("node_id", ""))))
+	btn.disabled = not bool(row.get("can_buy", false))
+	hb.add_child(btn)
+	_tree_buy_btns.append({"node_id": String(row.get("node_id", "")), "btn": btn})
+	return hb
+
+
+## Fork 双态行板构建域：组状态文案+解锁钮或双态切换钮
+func _tree_fork_line(fg: Dictionary) -> HBoxContainer:
+	var group := String(fg.get("group", ""))
+	var active := String(fg.get("active_side", ""))
+	var owned := bool(fg.get("owned", false))
+	var fb := HBoxContainer.new()
+	fb.add_theme_constant_override("separation", 6)
+	var state_txt := "未解锁"
+	if owned:
+		state_txt = "激活:%s" % active
+	var gl := UiKit.label("%s［%s］" % [String(fg.get("display_name", group)), state_txt], 13, false, UiKit.INK_LABEL)
+	fb.add_child(gl)
+	if not owned:
+		var bb := UiKit.button("解锁 %d 钥石" % int(fg.get("price", 0)), 0.0)   # 行板紧凑钮豁免
+		bb.pressed.connect(func(): tree_buy_requested.emit(String(fg.get("node_id", ""))))
+		bb.disabled = not bool(fg.get("can_buy", false))
+		fb.add_child(bb)
+		_tree_buy_btns.append({"node_id": String(fg.get("node_id", "")), "btn": bb})
+	else:
+		for side_row in (fg.get("sides", []) as Array):
+			var sd := String(side_row.get("side", ""))
+			var sb := UiKit.button(String(side_row.get("display_name", sd)), 0.0)   # 行板紧凑钮豁免
+			sb.pressed.connect(func(): tree_fork_toggled.emit(group, sd))
+			fb.add_child(sb)
+			_tree_fork_btns.append({"group": group, "side": sd, "btn": sb})
+	return fb