Fix create_session API endpoint and perform housekeeping on murfey.server.api.session_info

[tieneupin]

NOTE: This PR will need to be deployed alongside DiamondLightSource/murfey-frontend#88

The create_session FastAPI endpoint previously parsed the visit (e.g. 'cm12345-6') and name (an optional long-form description) directly from the URL path. This is unsafe, as the presence of characters such as '/' in the parametrers will break the URL construction logic.

This PR fixes that by passing the visit and name as part of the JSON data payload instead. The API endpoint path was also changed now that visit and name are no longer needed as URL path parts.

As part of housekeeping, the way in which the Murfey database tables were imported and called was also standardised. Instead of importing the tables directly, we use import murfey.util.db as MurfeyDB and called tables from MurfeyDB. Type hints were also replaced with more modern variants.

A bug was also identified when seeding the database fixtures upon startup. For integer primary keys, if a value is manually provided as part of the initial insert, it does not update PostGreSQL's internal counter. Subsequent inserts where the primary key is allow to auto-increment will then attempt to insert into that database with the previous primary key, causing the insert to fail. By removing the primary key from the initial insert in the database fixture, the internal PostgreSQL counter is now updated correctly.

[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 55.48%. Comparing base (cc9def2) to head (1f23e02).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #906      +/-   ##
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+ Coverage   55.42%   55.48%   +0.06%     
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  Files         103      103              
  Lines       11546    11547       +1     
  Branches     1541     1541              
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+ Hits         6399     6407       +8     
+ Misses       4800     4793       -7     
  Partials      347      347              

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[stephen-riggs]

name definitely needs sanitising - I'd suggest stripping out anything except standard alphanumeric and _ or -

[tieneupin]

Ok, I've tacked on the sanitise() function to both of them.

[stephen-riggs]

probably also worth sanitising the visit in the same way