fix(laser): expose calibration pv prefix

superxas_bec/device_configs/x10da_laser_delay.yaml

@@ -33,8 +33,8 @@ laser_delay:
     step_sleep: 0.1
     phase_path: script  # "shortest" is opt-in, see the module docstring
     fine_rollover: true  # FINE 200 is written as the next coarse unit and 0 (open question)
-    calibration_file: ~/.superxas_bec/laser_delay_calibration.json
-    # calibration_pv_prefix: "X10DA-LAS-DELAY:"  # once the soft records exist; remove calibration_file
+#    calibration_file: ~/.superxas_bec/laser_delay_calibration.json
+    calibration_pv_prefix: "X10DA-LAS-DELAY:"  # once the soft records exist; remove calibration_file
   deviceTags:
     - laser
     - timing