DAQ: and models.py - added last_best_res calculation and value to daq and models

common/src/aaredaqlib/models.py

@@ -601,6 +601,7 @@ class DAQStatusModel(BaseModel):
     sample: SampleShortInfo | None = None
     session: SessionStatus
     box: BoundingBoxModel | None = None
+    last_best_res: float | None = None
 
 class BeamlineSettingsModel(BaseModel):
     dtz_max: float | None = 1600.0