Count preprocessed movies

[tieneupin]

Updating the last_active time as part of processing, introduced in PR #913, was a step in the right direction. However, it is reliant on processing occurring as planned; a processing failure late at night or over the weekend could lead to the timestamp failing to update, making it seem as if the session has become inactive.

A more robust check for the SPA and tomo workflows for whether processing is complete would involve counting how many of the movies associated with the current session have yet to undergo preprocessing (Movie.preprocessed == False). The number of complete vs incomplete movies can then be passed along to the Murfey frontend to warn the user whether to proceed with a session cleanup or not.

This PR adds a new API endpoint to the murfey.server.api.session_info module that returns the number of complete and incomplete movies for the specified session as a dictionary. It also adds logic when registering motion_corrected messages to also update the Movie rows associated with the received tilt series and mark it as having been preprocessed. Also adds a test for the new API endpoint.

[codecov]

Codecov Report

❌ Patch coverage is 71.42857% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 55.45%. Comparing base (3fed4b7) to head (42377db).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #921      +/-   ##
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+ Coverage   55.43%   55.45%   +0.01%     
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  Files         103      103              
  Lines       11636    11650      +14     
  Branches     1546     1549       +3     
==========================================
+ Hits         6450     6460      +10     
- Misses       4837     4841       +4     
  Partials      349      349              

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[stephen-riggs]

Looks good to me