改善 Studio 回放布局与传感器切换体验

缩短界面提示，保存上次视频目录，并防止旧结果绘入 Finger 3D。针对性测试及可见界面复测通过。

apps/studio/tests/test_view_layout.py

@@ -304,9 +304,23 @@ def test_the_shipped_live_layout_makes_the_3d_pane_the_widest_panel():
     assert mesh > charts, DEFAULT_SPLITTER_SIZES
     live_mesh, live_image, live_charts, _cal_live = LIVE["live"]
     assert live_mesh > live_image and live_mesh > live_charts, LIVE["live"]
-    assert LIVE["replay"] == LIVE["live"], (
-        "the replay view is the live layout with another source"
+    assert LIVE["replay"][2] > LIVE["replay"][0], (
+        "history browsing needs more chart width than 3D width"
     )
+    assert LIVE["live"][1] >= 400 and LIVE["replay"][1] >= 400, (
+        "the 2D marker picture is too narrow to inspect"
+    )
+
+
+def test_panel_stretch_keeps_each_views_priority_after_resizing():
+    controller, parts = _controller(prefs={"view_preset": "live"}, sensor_type="finger")
+    controller.show_finger_3d = True
+
+    controller.apply_panel_visibility()
+    assert dict(parts["splitter"].stretches) == {0: 5, 1: 4, 2: 4, 3: 0}
+
+    controller.apply_preset("replay")
+    assert dict(parts["splitter"].stretches) == {0: 4, 1: 4, 2: 5, 3: 0}
 
 
 def test_the_calibration_panel_toggle_is_the_calibration_view_switch():