feat: more obvious names for report products

[lgray]

Call the report output report and the from-uproot part from-uproot (or whatever input file format it happens to be) but with a different token key.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.10%. Comparing base (8cb8994) to head (67ab7d7).
Report is 20 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #478      +/-   ##
==========================================
+ Coverage   93.06%   93.10%   +0.03%     
==========================================
  Files          23       23              
  Lines        3290     3305      +15     
==========================================
+ Hits         3062     3077      +15     
  Misses        228      228              

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