修复 Autocal 压头配置、姿态保存与复核性能

阻止不完整标定配置生成 Z 目标，同步当前测点姿态，并将复核文件校验移到后台。通过 476 项全量测试、53 项最终定向复验和代码检查。

apps/autocal/tests/test_preferences_isolation.py

@@ -15,10 +15,23 @@ from __future__ import annotations
 
 from pathlib import Path
 
+import pytest
+
 APP_ROOT = Path(__file__).resolve().parents[1]
 INSTALLED = APP_ROOT / "preference.json"
 
 
+@pytest.mark.parametrize("stored", [{"calibrated": True}, {"zero_mm": 12.5, "calibrated": True}])
+def test_loading_incomplete_press_calibration_does_not_invent_measurements(stored):
+    import json
+    from orisys_autocal import preferences
+    from orisys_autocal.motion.pose_move import PressAxis
+
+    Path(preferences.path()).write_text(json.dumps({"press_axis": stored}), encoding="utf-8")
+    loaded = preferences.load_preferences()
+    assert PressAxis.from_settings(loaded["press_axis"]).target_for(20) is None
+
+
 def test_the_preference_path_is_redirected_under_the_scratch_root():
     from orisys_autocal.preferences import path