feat: add more fields to camera model

[tlambert03]

[codecov[bot]]

Codecov Report

:x: Patch coverage is 94.73684% with 1 line in your changes missing coverage. Please review. :white_check_mark: Project coverage is 50.48%. Comparing base (ff170c9) to head (e8fc678). :warning: Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
backend/proteins/models/spectrum.py	94.73%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #248      +/-   ##
==========================================
+ Coverage   50.43%   50.48%   +0.05%     
==========================================
  Files         111      111              
  Lines        9555     9583      +28     
==========================================
+ Hits         4819     4838      +19     
- Misses       4736     4745       +9     

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