feat: complete mobile UI implementation

project/skill_test.gd

@@ -290,6 +290,21 @@ func _run() -> void:
 	qb._clear(1)
 	_ck(fc.quickslot_ops.back() == ["del", 1], "quickslot clear -> CG_QUICKSLOT_DEL")
 
+	# 移动技能页：横屏大触控行 + 一键放入当前页快捷栏空位，替代 PC 拖放。
+	sk.close()
+	sk.set_mobile_mode(true)
+	sk.set_mobile_quickbar(qb)
+	sk.open()
+	_ck(sk.is_open() and sk._win.size == Vector2(760, 340),
+			"mobile skill window uses landscape base size")
+	_ck(sk._win.get_node_or_null("SkillScroll") is ScrollContainer,
+			"mobile skill list is scrollable")
+	if sk._rows.has(16):
+		sk._mobile_assign_skill(16)
+		_ck(qb._state[0].kind == "skill" and qb._state[0].id == 16,
+				"mobile skill action assigns to first free quickbar slot")
+	sk.close()
+
 	# 服务器 GC_QUICKSLOT_* 恢复：type 2 技能 / type 1 道具 / type 3 表情 -> 填格
 	var qb2: Node = Quickbar.new()
 	get_root().add_child(qb2)