重构 Autocal 采集页：单一队列与控制器驱动的主按钮

选点、对准、加载与录像分散在两个面板，状态靠隐藏相位判断。现改由不依赖 Qt 的采集控制器驱动，并加入录像选项、汇总平铺副本、保持到时自动结束、会话结束回到空闲，以及无设备时的模拟采集。已运行 Autocal 非 Qt 测试并通过范围内门禁；界面测试待 Windows 复核，未做实机验收。

apps/autocal/tests/test_preferences_isolation.py

@@ -75,3 +75,28 @@ def test_a_window_that_closes_still_lands_in_the_scratch_directory(qt_app):
 
     after = INSTALLED.read_bytes() if INSTALLED.is_file() else None
     assert after == before, "closing a test window rewrote the installed preferences"
+
+
+def test_a_stored_recording_block_without_the_newer_keys_gets_each_default():
+    """The upgrade path for the recording preference, through the same net.
+
+    A stored ``recording`` block replaces the whole default block, exactly like
+    ``safety_limits``: a codec or the lossless flag added later would otherwise
+    read as absent and the recorder would be configured from a hole.
+    """
+    import json
+
+    from orisys_app_shared.paths import preference_path
+
+    from orisys_autocal.preferences import load_preferences
+    from orisys_autocal.recording_options import RecordingOptions, default_options
+
+    path = preference_path()
+    path.parent.mkdir(parents=True, exist_ok=True)
+    path.write_text(json.dumps({"recording": {"video": False}}), encoding="utf-8")
+
+    options = default_options(load_preferences())
+
+    assert options == RecordingOptions(video=False)
+    assert options.codec == "mp4v"
+    assert options.lossless_frames is False