修复 Studio 失败测试并新增合并门禁

把丢失的 box 录像放回 apps/studio/tests/data/，修掉第 3 节 3–10 号与两处过时测试桩，
注册 timing 标记并让根目录收集零错误；新增 tools/gate.ps1 与可选的 pre-push 钩子。
验证：studio 524 通过 19 跳过、shared 467 通过 18 跳过、ui_check 632 项 0 失败、gate.ps1 退出码 0。
细节见 docs/test-repair-plan.zh.md。

apps/studio/tests/test_ui_smoke.py

@@ -7,16 +7,16 @@ from pathlib import Path
 import numpy as np
 import pytest
 import ui_check
-from tests.conftest import (
+from _studio_helpers import (
     finish_run as _finish,
 )
-from tests.conftest import (
+from _studio_helpers import (
     running_window as _running_window,
 )
-from tests.conftest import (
+from _studio_helpers import (
     show_window as _show,
 )
-from tests.conftest import (
+from _studio_helpers import (
     visible_descendants,
 )
 
@@ -193,13 +193,27 @@ def test_status_chip_tracks_phase(make_window):
 
 
 def test_run_tooltip_explains_disabled_reason(make_window):
+    """A video source never starts a live run, and the rail says why.
+
+    The button used to become enabled when a video file was chosen here; the live view
+    is a camera only (``test_live_run_refuses_a_video_source`` pins the same rule from
+    the other side), so choosing a file leaves Run unavailable and the reason names the
+    camera instead of a missing file.
+    """
+    from orisys_app_shared.i18n import t
+
     window = _show(make_window(source_mode="video", video_path=""), (1400, 880))
     assert not window.toolbar.btn_run.isEnabled()
     assert window.toolbar.btn_run.toolTip()
 
     window.toolbar.set_video_path("C:/tmp/demo.mp4")
     window._update_run_enabled()
-    assert window.toolbar.btn_run.isEnabled()
+    reason = t("toolbar.run_video_in_replay")
+    assert not window.toolbar.btn_run.isEnabled(), (
+        "a video source still starts a live run"
+    )
+    assert window.toolbar.btn_run.toolTip() == reason, window.toolbar.btn_run.toolTip()
+    assert window.toolbar.run_hint.text() == reason, window.toolbar.run_hint.text()
 
 
 def test_toolbar_run_button_is_labelled(make_window):
@@ -1501,7 +1515,18 @@ def test_the_sensor_summary_opens_the_dialog(make_window):
     assert dialog.calib_title.text() == t("sensor.calib_section")
     assert dialog.version_label.text() and dialog.axes_label.text()
     assert dialog.export_label.text() == t("sensor.export_none")
-    assert not dialog.btn_apply.isEnabled(), "applying with no export"
+    # 应用 is the *live calibration* action, not "apply the last export" (``3d2fb0c``
+    # moved it here): it is offered with no export because there is always a choice to
+    # apply — the profile's declared file, a browsed one, or raw force — and with no
+    # session running it only remembers that choice (``sensor_dialog.py:324`` enables it
+    # unconditionally; ``apply_live_calibration_choice`` reports a problem instead of
+    # raising, so an offered button cannot fail).
+    assert dialog.btn_apply.isEnabled(), "the live calibration cannot be applied"
+    assert dialog.btn_apply.text() == t("cal.apply")
+    assert dialog.btn_apply.toolTip() == t("sensor.live_calibration_apply_tip")
+    assert dialog.calibration_combo.currentData() in ("default", "none"), (
+        dialog.calibration_combo.currentData()
+    )
 
     # Changing the product in the dialog reaches the window and the rail.
     picker.type_combo.setCurrentIndex(picker.type_combo.findData("finger"))
@@ -1659,11 +1684,17 @@ def test_the_2d_area_keeps_the_output_aspect_ratio(make_window):
 
 
 def test_the_replay_view_is_the_live_view_with_a_video_source(make_window):
-    """One layout for both views; the only difference is the source slot.
+    """The same panes and the same transport as the live view; two stated differences.
 
     The replay used to carry its own bar (a progress slider plus a recording
     picker). It is gone: the chart's cursor is the playhead, its header carries
     the transport, and the rail shows the video instead of the camera.
+
+    What differs is deliberate (``321e52f``: "keep each preset's panel priority"):
+    the replay gives the **charts** the room, so the 2D panel is narrower than in the
+    live view and the charts are wider. This used to assert the splitter widths were
+    *equal*, which was true before that change and is the opposite of what the
+    layout now promises.
     """
     from orisys_app_shared.i18n import t
 
@@ -1673,13 +1704,23 @@ def test_the_replay_view_is_the_live_view_with_a_video_source(make_window):
 
     QApplication.processEvents()
     live_sizes = tuple(window.content_splitter.sizes())
+    # Slot 1 is the 2D panel and slot 2 the charts (0 and 3 are the mesh and calibration
+    # panels, both hidden here, hence their zero width).
+    assert live_sizes[1] > 0 and live_sizes[2] > 0, live_sizes
 
     window.brand_bar.btn_playback.click()
     QApplication.processEvents()
     assert not hasattr(window, "replay_bar"), "the replay still has a separate bar"
-    assert tuple(window.content_splitter.sizes()) == live_sizes, (
-        "the replay view is not laid out like the live view"
+    replay_sizes = tuple(window.content_splitter.sizes())
+    assert replay_sizes[1] < live_sizes[1], (
+        f"the replay 2D panel is not narrower than the live one: {replay_sizes} vs {live_sizes}"
     )
+    assert replay_sizes[2] > live_sizes[2], (
+        f"the replay charts did not take that room: {replay_sizes} vs {live_sizes}"
+    )
+    # The priority behind those numbers is ``view_layout.py``'s per-preset stretch
+    # factors (arrow 4, charts 5 in replay). The splitter exposes no getter for them in
+    # PySide6, so the widths above are what this test can read.
     assert window.toolbar.btn_replay_video.isVisible(), "no video picker while replaying"
     assert window.toolbar.btn_replay_video.text() == t("toolbar.choose_video")
     assert window.toolbar.btn_replay_video.toolTip() == t("toolbar.choose_video_tip")
@@ -2949,6 +2990,14 @@ def test_the_rail_puts_result_identity_before_a_long_video_name(
 
 
 def test_old_result_depth_is_not_sent_to_the_new_sensor_scene(make_window, monkeypatch):
+    """A result from the previous sensor must not reach the new sensor's 3D scene.
+
+    Driven through the window's public packet entry (``show_analysis_packet``, which
+    ``cf49b08``/``28e955a`` made the replay path; the private ``_show_analysis_frame``
+    it replaced no longer exists). The claim is unchanged: a Finger window refuses a
+    packet whose result says it came from a Box, and accepts the same packet once the
+    result names the sensor on screen.
+    """
     from types import SimpleNamespace
 
     window = make_window(sensor_type="finger")
@@ -2968,10 +3017,10 @@ def test_old_result_depth_is_not_sent_to_the_new_sensor_scene(make_window, monke
     monkeypatch.setattr(window, "_connect_analysis_display", lambda _panel: True)
     monkeypatch.setattr(window, "_tick_analysis_3d", lambda: None)
     try:
-        window._show_analysis_frame("old box packet")
-        assert submitted == []
+        window.show_analysis_packet("old box packet")
+        assert submitted == [], "an old sensor's depth reached the new sensor's scene"
         session.reader.provenance.sensor_type = "finger"
-        window._show_analysis_frame("finger packet")
+        window.show_analysis_packet("finger packet")
         assert submitted == ["finger packet"]
     finally:
         panel._view = real_view