Merge main into Pallet-placement

Resolved conflicts:
- app/update/mod.rs: keep the dock's dock_open_at_default for the XREF
  manager; take main's stable xref row identity (row_index(&id)).
- app/view/mod.rs: keep the edge layout from app::dock; drop main's copy
  of the old edge-stack code (main only reformatted it there).
- ui/window/layers.rs: keep main's new visible_indices next to the
  branch's view_panel.
Files the branch only reformatted take main's version. Adds the Lao
(lo-LA) translations for the new dock texts.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013RyGiMXcsf9HTKfqDxaQGt

locales/zh-CN/opencadstudio.ftl

@@ -13,6 +13,7 @@ language =
     .arabic = العربية
     .japanese = 日本語
     .korean = 한국어
+    .lao = ລາວ
     .czech = Čeština
     .italian = Italiano
     .finnish = Suomi
@@ -1424,6 +1425,8 @@ common =
     .user-preferences = 用户首选项
     .zoom = 缩放
     .reverse-mouse-wheel-zoom-zoomwheel = 反转鼠标滚轮缩放方向 (ZOOMWHEEL)
+    .touchpad-scroll-pans-ctrl-scroll-or-pinch-zooms = 触控板：滚动平移，Ctrl+滚动或捏合缩放
+    .interface-scale = 界面缩放
     .zoom-factor = 缩放系数
     .how-far-one-wheel-notch-zooms-zoomfactor = 滚轮每格的缩放幅度 (ZOOMFACTOR)。
     .text-and-dimensions = 文字和标注
@@ -2493,6 +2496,12 @@ inquiry =
     .id-specify-point = ID  指定点：
     .list-no-entities-selected-select-entities-firs = LIST:没有选择实体。首先选择实体。
     .massprop-no-entities-selected-select-entities = MASSPROP:没有选择实体。首先选择实体。
+    .massprop-has-no-closed-body-to-measure = MASSPROP: __ocs_fmt_0__ 没有可测量的封闭实体。
+    .volume-4-centroid-4-4-4 = __ocs_fmt_0__  体积=__ocs_fmt_1__  质心=(__ocs_fmt_2__,__ocs_fmt_3__,__ocs_fmt_4__)
+    .moments-of-inertia-x-4-y-4-z-4 = 惯性矩  X=__ocs_fmt_0__  Y=__ocs_fmt_1__  Z=__ocs_fmt_2__
+    .products-of-inertia-xy-4-yz-4-zx-4 = 惯性积  XY=__ocs_fmt_0__  YZ=__ocs_fmt_1__  ZX=__ocs_fmt_2__
+    .radii-of-gyration-x-4-y-4-z-4 = 回转半径  X=__ocs_fmt_0__  Y=__ocs_fmt_1__  Z=__ocs_fmt_2__
+    .principal-moments-about-centroid-i-4-j-4-k-4 = 关于质心的主力矩  I=__ocs_fmt_0__  J=__ocs_fmt_1__  K=__ocs_fmt_2__
     .measure-select-object-to-measure = MEASURE  选择要定距等分的对象：
     .measure-specify-segment-length = MEASURE  指定线段长度：
     .measuregeom-enter-an-option-distance-radius-an = MEASUREGEOM  输入选项 [距离/半径/角度/面积]：