Add per-medium breakouts to dashboard statistics inventories. (PP-728)

[tdilauro]

Description

• Add per-medium breakouts to dashboard statistics inventories.
• Add supporting tests and clean up some tests.
• Resolve some PEP-8 and mypy issues with SQLAlchemy filters.

This work requires changes to the circulation admin UI. The following work is required before this PR can be moved out of draft status and merged:

• Change interface in circulation-admin and make the changes required for PP-728.
  These changes are introduced in circulation-admin PR 98.
• Release a new version (v1.12.0) of circulation-admin.
• Update this PR with new version of circulation-admin.

Note:

• Based on testing, the changes in this PR are backward compatible with recent versions of the circulation admin UI.
• The API has changed, so I am labeling as incompatible changes.

Motivation and Context

Need to support additional detail by type of medium (book, audiobook, etc.).

[Jira PP-728]

How Has This Been Tested?

• Additional tests.
• Manual testing in local development environment.
• CI tests for associated branch pass.

Checklist

• I have updated the documentation accordingly.
• All new and existing tests passed.

[jonathangreen]

Might be a couple lines of commented out testing code that should get cleaned up before merging, but otherwise looks good to me! 🎸

I also left a couple minor comments, but as always feel free to make those changes or just merge as is.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (9babdac) 90.17% compared to head (e6e92ea) 90.18%.
Report is 21 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1549      +/-   ##
==========================================
+ Coverage   90.17%   90.18%   +0.01%     
==========================================
  Files         234      234              
  Lines       28187    28215      +28     
  Branches     6455     6456       +1     
==========================================
+ Hits        25418    25447      +29     
  Misses       1831     1831              
+ Partials      938      937       -1     

Flag	Coverage Δ
Api	75.79% <100.00%> (+0.02%)	⬆️
Core	59.56% <1.44%> (-0.06%)	⬇️
migration	29.84% <1.44%> (-0.03%)	⬇️

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[tdilauro]

@jonathangreen I made some substantial changes while following your suggestion to use a dataclass, so you might want to take another look. No worried if you don't and no rush, as I won't be merging until the admin UI is updated.

Also, codecov seems to have lost its mind. I just manually verified that the tests were hitting lines that it claimed they were missing. 🤷🏽‍♂️

[jonathangreen]

Changes look great!