装备校验链/快捷栏/公会/好友情侣/交易仓库五项差距修复（增量 129）

- 装备校验：can_equip 按 CanEquipNow→FindEquipCell→EquipItem 精确重排，
  新增 find_equip_cell() 1:1 复刻（RING/UNIQUE 占用翻转、COSTUME/BELT/DS），
  帝国 antiflag 降级为 tooltip 提示，LIMIT_PCBANG/REAL_TIME* 语义与倒计时文案
- 快捷栏：死亡全槽禁用+激活守卫、变身（affect 220）技能置灰、
  物品槽失配置灰（服务器回收/换武器后刷新）
- 公会：GUILD_AUTH_* 权限位门控踢人/公告/技能升级，/gskillup、
  被宣战应答弹窗（/war·/nowar）、资金存取行（40250 服务端已禁用仍保留 1:1）
- 好友/情侣：messenger 三固定组（好友/公会/情侣），lover_login/logout/
  near/far/divorce 命令事件→在线/在身边状态与离婚隐藏
- 交易/仓库：ExchangeState.last_notice（ALREADY/LESS_GOLD）结束浮层提示；
  仓库改密 /safebox_change_password 三段输入；关窗补 /safebox_close·/mall_close；
  仓库金钱经核实 40250 无 wire 协议，UI 定界只读
- app_flow：重连时 guild_marks_ready 重复连接加 is_connected 守卫
- 相机 look_at 零向量守卫（首帧/传送落点）
- 测试：equip/love/guild 断言更新，79 项中 78 绿（game_camera_test 为
  HEAD 既有失败）；真服冒烟 LIVE_SMOKE PASS（192.168.21.203 全链路）
- docs/CLIENT-GAP.md 同步增量 129

Co-Authored-By: Claude Code <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018kUFvQGYusuY3dkfGitmAe

project/game_scene.gd

@@ -182,19 +182,8 @@ func setup(m2client: Node, assets_root: String,
 	if net_world.has_method("set_camera"):
 		net_world.set_camera(cam)
 	net_world.set_local_node(player)
-	net_world.entity_added.connect(func(node: Node3D, _vid: int):
-		# Model-factory upgrades replace an earlier placeholder node in place.
-		# Drop queued-for-free entries before registering the rebuilt pick target.
-		for old in pc.pickables.duplicate():
-			if old == null or not is_instance_valid(old):
-				pc.pickables.erase(old)
-		if node not in pc.pickables:
-			pc.pickables.append(node))
-	net_world.entity_removed.connect(func(vid: int):
-		for pickable in pc.pickables.duplicate():
-			if pickable == null or not is_instance_valid(pickable) \
-					or int(pickable.get_meta("vid", -1)) == vid:
-				pc.pickables.erase(pickable))
+	net_world.entity_added.connect(_on_pickable_added)
+	net_world.entity_removed.connect(_on_pickable_removed)
 
 	if _ui_mobile:
 		hud = MobileUiRoot.new()
@@ -611,6 +600,36 @@ func _setup_mobile_ui() -> void:
 	})
 	set_process(true)
 
+# 可点选实体列表维护。pickables 是 Array[Node3D]（TypedArray），对已释放的实例
+# 调用 erase()/has() 会被类型校验拒绝并报错，所以一律按下标倒序 remove_at()。
+func _drop_stale_pickables(drop_vid: int = -1) -> void:
+	if pc == null:
+		return
+	var list: Array = pc.pickables
+	for i in range(list.size() - 1, -1, -1):
+		# 不要把元素赋给 Node3D 类型的变量：已释放的实例会在类型校验时再次报错。
+		var n = list[i]
+		if n == null or not is_instance_valid(n):
+			list.remove_at(i)
+		elif n.is_queued_for_deletion():
+			list.remove_at(i)
+		elif drop_vid >= 0 and int(n.get_meta("vid", -1)) == drop_vid:
+			list.remove_at(i)
+
+# 模型工厂升级会原地替换先前的占位节点，注册新的点选目标前先清掉待删条目。
+func _on_pickable_added(node: Node3D, _vid: int) -> void:
+	if pc == null or node == null:
+		return
+	_drop_stale_pickables()
+	var list: Array = pc.pickables
+	for existing in list:
+		if existing == node:
+			return
+	list.append(node)
+
+func _on_pickable_removed(vid: int) -> void:
+	_drop_stale_pickables(vid)
+
 func _lifecycle_node() -> Node:
 	# AppFlow owns the single lifecycle observer across login/select/game.  The
 	# game scene only borrows it for Android back and focus recovery.