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/char_select_screen.gd

@@ -35,10 +35,12 @@ const JOB_BASE_STATS := {
 	2: {"con": 3, "int": 5, "str": 5, "dex": 3},   # sura
 	3: {"con": 4, "int": 6, "str": 3, "dex": 3},   # shaman
 }
-# §1.10 名称长度校验统一：与 wire 契约 CHARACTER_NAME_MAX_LEN(=24, name[25])
-# 对齐。角色名可含多字节字符，wire 缓冲是定长 25 字节，故按 UTF-8 字节长度设限，
-# 与 guild_ui.gd 的公会名校验（非空 / 超长 / 控制字符）保持同一形状。
-const CHAR_NAME_MAX_BYTES := 24
+# §1.10：40250 的角色名上限是网络字段的 24 个 GB2312 字节，而不是
+# Godot/UTF-8 输入的 24 个字节。一个常用汉字在 GB2312 中占 2 字节，所以
+# 12 个汉字可以合法放入角色名字段；直接按 UTF-8 字节限制会把它错误拒绝。
+# 输入框只限制 Unicode 字符数量，最终的 GB2312 可表示性和 wire 字节容量由
+# M2Client/ClassicSession 在真正发包前统一校验。
+const CHAR_NAME_MAX_CHARS := 24
 const CHAR_NAME_MIN_CHARS := 2
 
 const EMPIRE_KEY := {1: "EMPIRE_A", 2: "EMPIRE_B", 3: "EMPIRE_C"}
@@ -128,8 +130,8 @@ func _first_occupied() -> int:
 func _validate_char_name(nm: String) -> String:
 	if nm.length() < CHAR_NAME_MIN_CHARS:
 		return "名称太短"
-	if nm.to_utf8_buffer().size() > CHAR_NAME_MAX_BYTES:
-		return "名称太长（最多 %d 字节）" % CHAR_NAME_MAX_BYTES
+	if nm.length() > CHAR_NAME_MAX_CHARS:
+		return "名称太长（最多 %d 个字符）" % CHAR_NAME_MAX_CHARS
 	for ch in nm:
 		if ch.unicode_at(0) < 32:
 			return "名称包含非法字符"
@@ -695,9 +697,16 @@ func _do_start() -> void:
 				if dur > 0.0:
 					anim_dur = dur
 
-	await get_tree().create_timer(anim_dur).timeout
-	if not is_inside_tree():
-		return
+	# The real select window is always tree-owned, but keeping the signal
+	# usable when a headless/reconnect harness invokes the handler before the
+	# transient CanvasLayer is attached prevents the selection from being
+	# silently dropped.  Once a tree-owned screen leaves the tree, it is being
+	# replaced and must not emit into the new phase.
+	var had_tree := is_inside_tree()
+	if had_tree and get_tree() != null:
+		await get_tree().create_timer(anim_dur).timeout
+		if not is_inside_tree():
+			return
 	select_requested.emit(_slot_index())
 
 func _unhandled_input(event: InputEvent) -> void:
@@ -791,9 +800,9 @@ func _open_create_dialog() -> void:
 	nrow.add_child(_plain("名称", 13, Color(0.72, 0.78, 0.85)))
 	var name_edit := LineEdit.new()
 	name_edit.name = "Name"
-	name_edit.max_length = CHAR_NAME_MAX_BYTES
+	name_edit.max_length = CHAR_NAME_MAX_CHARS
 	name_edit.custom_minimum_size = Vector2(240, 0)
-	name_edit.placeholder_text = "角色名（最多 24 字节）"
+	name_edit.placeholder_text = "角色名（中文最多 12 字，最终按 GB2312 字节校验）"
 	nrow.add_child(name_edit)
 
 	# 四维（起始属性，只读，随职业变）
@@ -852,9 +861,9 @@ func _open_change_name_dialog() -> void:
 	nrow.add_child(_plain("新名称", 13, Color(0.72, 0.78, 0.85)))
 	var name_edit := LineEdit.new()
 	name_edit.name = "Name"
-	name_edit.max_length = CHAR_NAME_MAX_BYTES
+	name_edit.max_length = CHAR_NAME_MAX_CHARS
 	name_edit.custom_minimum_size = Vector2(220, 0)
-	name_edit.placeholder_text = "角色名（最多 24 字节）"
+	name_edit.placeholder_text = "角色名（中文最多 12 字，最终按 GB2312 字节校验）"
 	nrow.add_child(name_edit)
 	box.add_child(_sep())
 	var brow := HBoxContainer.new()