#2047 - Add enum/permissible value validation to API endpoint

[cristina-stonepedraza]

Add to the existing MIxS environmental triad slot review API endpoint to include enum validation to ensure that env package, local scale, broad scale, and medium fields include slots that are part of each enum's permissible value list.

[cristina-stonepedraza]

Here is an example of the TSV file results so far:

[pkalita-lbl]

nmdc-submission-schema is already a dependency of this project, so there's no need to fetch from GitHub here. In addition to the unnecessary overhead of making a request over the internet, the bigger concern is that fetching it from the main branch will, in general, get a version that is ahead of what's used in here nmdc-server.

The good news is that there is already code which generates a SchemaView instance from the schema file bundled in the nmdc-submission-schema package:

nmdc-server/nmdc_server/static_files.py

Lines 21 to 27 in cd9bc6d

	submission_schema_files = importlib.resources.files("nmdc_submission_schema")
	# Load each class in the submission schema, ensure that each slot of the class
	# is fully materialized into attributes, and then drop the slot usage definitions
	# to save some bytes.
	schema_path = submission_schema_files / "schema/nmdc_submission_schema.yaml"
	sv = SchemaView(str(schema_path))

I would recommend extracting that code into a utility function which returns a SchemaView instance (the result can/should even be cached). The new function can be called from the generate_submission_schema_files function and this function (although I might nitpick the name of this fetch_nmdc_submission_schema_view function since it doesn't return a SchemaView).