[ENG-6185][ENG-6186][ENG-6187][ENG-6188] additional searchable metadata for institutional dashboard

[aaxelb]

Purpose

add searchable metadata that will be used by the new™️ institutional dashboard

Changes

(recommend reading commit-by-commit)

• update metadata test helpers for more helpful feedback when adding metadata properties
• add osf:hasOsfAddon property (supplemental)
  • identify addons with urn:osf.example:addons:...
• add osf:storageRegion property (supplemental)
  • identify regions with https://api.osf.example/v2/regions/.../
• add prov:qualifiedAttribution (non-supplemental)
  • qualifies contributorship with a role: osf:admin-contributor, osf:write-contributor, or osf:readonly-contributor (and could add more nuanced/helpful contributor roles in the future)
• add osf:storageByteCount property (supplemental)
  • small refactor of update_storage_usage_cache:
    • add compute_storage_usage_total for the actual query
    • update query to use named params
    • replace a join with a separate ContentType.objects.get_for_model() call (which also allows for non-node file targets)
  • add get_storage_usage_total function (alternative to Node.storage_usage that waits for it to compute)

QA Notes

Please make verification statements inspired by your code and what your code touches.

• Verify changes in the described properties are reflected in the search api (or the institutional dashboard) shortly enough
• Verify existing search indexing does not break

What are the areas of risk?

Any concerns/considerations/questions that development raised?

Documentation

Side Effects

Ticket

• prov:qualifiedAttribution: ENG-6185
• osf:storageRegion: ENG-6186
• osf:storageByteCount: ENG-6187
• osf:hasOsfAddon: ENG-6188

[aaxelb]

(comments from group review)

[felliott]

LGTM, Abram found a few minor things that he will address, but no major blockers.

[cslzchen]

LGTM 🎆