1765 box size um

[rtuck99]

DO NOT MERGE

Part 2 of a fix for #1765

Requires:

• 1765 Refactor grid scan params #1787

Link to dodal PR (if required): #XXX
(remember to update pyproject.toml with the dodal commit tag if you need it for tests to pass!)

Below is the parameter class Hierarchy for GenericGrid before this refactor:

A note on changes

The internal parameter model has changed significantly and is now simpler.

The GenericGrid and subclasses portion of the parameter hierarchy is being removed and replaced with GridScanParams and GridDetectionParams.

detect_grid_and_do_gridscan now only requires DiffractionExperimentWithSample and GridDetectionParams
the grid detection plan now return GridScanParams
DiffractionExperimentWithSample and GridScanParams is all that is needed to perform a grid scan.

The grid detection and grid scan plans are now properly genericised with type parameter TParameter denoting the concrete parameter type extending DiffractionExperimentWithSample, so that it can be passed to the BeamlineSpecific portions and also deserialized in the callbacks.

DiffractionExperimentWithSample hierarchy now concentrates mainly on general-purpose diffraction parameters such as exposure timings, transmission fraction, and sample metadata.

DetectorParams is now decoupled from the gridscan parameter model, meaning it is no longer constructed when a property on the parameter model. Instead it is explicitly constructed in the experiment plan from the parameters, and passed in explicitly into the gridscan plan and to the callbacks.

This means that many subclasses can be removed from the parameter model, and it is possible to run 2d, 3d, gridscans and grid detection in any combination without requiring modifications to the parameter model.

The rotation scan parameter model has not been changed; it still has a detector_params property.

Instructions to reviewer on how to test:

1. Do thing x
2. Confirm thing y happens

Checks for reviewer

• Would the PR title make sense to a user on a set of release notes

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[codecov]

Codecov Report

❌ Patch coverage is 97.89474% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 93.05%. Comparing base (21f9fed) to head (2954544).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1786      +/-   ##
==========================================
+ Coverage   93.03%   93.05%   +0.01%     
==========================================
  Files         164      164              
  Lines        8931     8985      +54     
==========================================
+ Hits         8309     8361      +52     
- Misses        622      624       +2     

Components	Coverage Δ
i24 SSX	77.16% <ø> (ø)
hyperion	98.74% <100.00%> (+<0.01%)	⬆️
other	98.14% <97.53%> (-0.03%)	⬇️

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