autocal: 新增单位与换算页（默认锁定）及轴页报警与事件日志

- 设备设置新增“单位与换算”页：显示各轴 UNITS、读回值、脉冲/mm 换算与核对状态；
  默认锁定，点击“修改”后才可编辑，应用前弹窗确认，旋转轴偏离标定值时额外警告
- 轴调试页：脉冲当量改为只读并提供入口；新增报警与事件日志（报警、使能、
  回零、读取失败、单位不符等）及单位核对摘要
- 新增 motion/unit_report.py、motion/events.py 及对应测试

apps/autocal/tests/test_units_page.py

@@ -53,7 +53,7 @@ def test_the_page_is_locked_until_the_operator_presses_modify(make_window):
     page = window.device_setup.units_page
     page.set_rows(_rows(connected=False), False)
     assert page.locked
-    assert all(edit.isReadOnly() for edit in page._edits.values())  # noqa: SLF001
+    assert all(edit.isReadOnly() for edit in page._edits.values())
     # Nothing to change on a machine that is not connected.
     assert not page.modify_button.isEnabled()
 
@@ -61,7 +61,7 @@ def test_the_page_is_locked_until_the_operator_presses_modify(make_window):
     assert page.modify_button.isEnabled()
     page.modify_button.click()
     assert not page.locked
-    assert not any(edit.isReadOnly() for edit in page._edits.values())  # noqa: SLF001
+    assert not any(edit.isReadOnly() for edit in page._edits.values())
     assert page.apply_button.isEnabled()
     window.close()
 
@@ -75,7 +75,7 @@ def test_a_confirmed_change_is_emitted_and_the_page_locks_again(make_window, mon
     asked = _answer(monkeypatch, QMessageBox.StandardButton.Yes)
 
     page.modify_button.click()
-    page._edits["x"].setText("5")  # noqa: SLF001
+    page._edits["x"].setText("5")
     page.apply_button.click()
 
     assert emitted == [{0: 5.0}]
@@ -93,14 +93,14 @@ def test_declining_the_confirmation_changes_nothing(make_window, monkeypatch):
     _answer(monkeypatch, QMessageBox.StandardButton.No)
 
     page.modify_button.click()
-    page._edits["y"].setText("20")  # noqa: SLF001
+    page._edits["y"].setText("20")
     page.apply_button.click()
 
     assert emitted == []
     assert not page.locked  # still the operator's to finish or cancel
     page.cancel_button.click()
     assert page.locked
-    assert page._edits["y"].text() == "10"  # noqa: SLF001
+    assert page._edits["y"].text() == "10"
     window.close()
 
 
@@ -111,7 +111,7 @@ def test_a_rotary_value_off_the_calibration_is_warned_about(make_window, monkeyp
     asked = _answer(monkeypatch, QMessageBox.StandardButton.No)
 
     page.modify_button.click()
-    page._edits["yaw"].setText("5")  # noqa: SLF001
+    page._edits["yaw"].setText("5")
     page.apply_button.click()
 
     assert t("units.confirm_rotary", roles=t("setup.role_yaw"), cal="10") in asked[0]
@@ -128,7 +128,7 @@ def test_an_unusable_value_is_refused_before_any_question(make_window, monkeypat
     asked = _answer(monkeypatch, QMessageBox.StandardButton.Yes)
 
     page.modify_button.click()
-    page._edits["z"].setText(bad)  # noqa: SLF001
+    page._edits["z"].setText(bad)
     page.apply_button.click()
 
     assert emitted == [] and asked == []
@@ -157,13 +157,13 @@ def test_a_changed_axis_mapping_drops_an_open_edit(make_window):
     page = window.device_setup.units_page
     page.set_rows(_rows(), True)
     page.modify_button.click()
-    page._edits["x"].setText("5")  # noqa: SLF001
+    page._edits["x"].setText("5")
 
     swapped = dict(ROLES, x=1, y=0)
     page.set_rows(build_unit_rows(swapped, lambda axis: 10.0, _snapshot()), True)
 
     assert page.locked
-    assert page._edits["x"].text() == "10"  # noqa: SLF001
+    assert page._edits["x"].text() == "10"
     window.close()
 
 
@@ -205,9 +205,9 @@ def test_the_axis_page_logs_alarms_and_can_clear_the_log(make_window):
 def test_a_unit_mismatch_reaches_the_axis_page_summary(make_window):
     window = make_window()
     window.axis_panel.update_snapshot(_snapshot(units=5.0))
-    window._refresh_unit_report()  # noqa: SLF001 - the window does this on every poll
+    window._refresh_unit_report()
     assert t("units.summary_bad", bad=5, total=5) == window.axis_panel.units_chip.text()
     window.axis_panel.update_snapshot(_snapshot(units=10.0))
-    window._refresh_unit_report()  # noqa: SLF001
+    window._refresh_unit_report()
     assert t("units.summary_ok", total=5) == window.axis_panel.units_chip.text()
     window.close()