fix: 装备属性面板避让逻辑 + 多项功能更新

- item_tooltip_view.gd: 新增 avoid_rect 属性，tooltip 与装备窗口重叠时自动推到左侧
- inventory_ui.gd: 悬停装备时传入窗口矩形作为避让区域
- 包含其他累积的功能开发和测试文件

project/ui/mall_ui.gd

@@ -8,10 +8,13 @@
 extends Node
 
 const ItemTooltip = preload("res://ui/item_tooltip.gd")
+const ItemTooltipBridge = preload("res://ui/item_tooltip_bridge.gd")
 
 var client: Node
 var proto: Node
 var _tooltip_builder: RefCounted
+var _tooltip_bridge: RefCounted
+var ui: CanvasLayer
 var _root: Control
 var _list: VBoxContainer
 var _title: Label
@@ -33,8 +36,11 @@ var _has_open_pos := false
 func setup(m2client: Node, parent: Node, proto_node: Node = null) -> void:
 	client = m2client
 	proto = proto_node
+	ui = parent as CanvasLayer
 	_tooltip_builder = ItemTooltip.new()
 	_tooltip_builder.setup(AssetRoot.path(), "en", proto)
+	_tooltip_bridge = ItemTooltipBridge.new()
+	_tooltip_bridge.setup(parent, proto, AssetRoot.path())
 	_build(parent)
 	if client.has_signal("mall_opened"):
 		client.mall_opened.connect(func(_s): open())
@@ -90,6 +96,8 @@ func close() -> void:
 	_close_local()
 
 func _close_local() -> void:
+	if _tooltip_bridge:
+		_tooltip_bridge.hide()
 	_has_open_pos = false
 	if item_mouse and item_mouse.has_method("unregister_owner"):
 		item_mouse.unregister_owner(self)
@@ -156,6 +164,7 @@ func _render_grid() -> void:
 		var cell: Button = _cells[pos]
 		cell.text = ""
 		cell.tooltip_text = ""
+		cell.set_meta("tooltip_item", {})
 		cell.set_meta("vnum", 0)
 		cell.set_meta("count", 0)
 	var items: Array = client.get_mall_items() if client and client.has_method("get_mall_items") else []
@@ -168,7 +177,8 @@ func _render_grid() -> void:
 		var count := int(it.get("count", 1))
 		var cell: Button = _cells[pos]
 		cell.text = "%s%s" % [_name_of(vnum).substr(0, 7), (" ×%d" % count) if count > 1 else ""]
-		cell.tooltip_text = _tooltip_for(it)
+		cell.tooltip_text = ""
+		cell.set_meta("tooltip_item", it.duplicate(true))
 		cell.set_meta("vnum", vnum)
 		cell.set_meta("count", count)
 
@@ -273,6 +283,8 @@ func _row(it: Dictionary) -> Control:
 	nm.text = "%s ×%d" % [_name_of(vnum), count]
 	nm.custom_minimum_size = Vector2(220, 0)
 	nm.add_theme_font_size_override("font_size", 12)
+	if _tooltip_bridge:
+		_tooltip_bridge.bind(nm, func() -> Dictionary: return it.duplicate(true))
 	row.add_child(nm)
 	if item_mouse:
 		nm.mouse_filter = Control.MOUSE_FILTER_STOP
@@ -350,6 +362,9 @@ func _build(parent: Node) -> void:
 		cell.add_theme_font_size_override("font_size", 9)
 		cell.gui_input.connect(func(e: InputEvent): _on_grid_input(pos, e))
 		cell.pressed.connect(func(): _on_mobile_grid_tap(pos))
+		if _tooltip_bridge:
+			cell.mouse_entered.connect(func(): _tooltip_bridge.show_item(cell.get_meta("tooltip_item", {})))
+			cell.mouse_exited.connect(func(): _tooltip_bridge.hide())
 		_grid.add_child(cell)
 		_cells[pos] = cell
 	var close := Button.new()