Apply score threshold filter

[annavik]

Summary

In #929, we setup a view to make it possible to adjust default filters for a project. In this PR, we apply the filter for score threshold. The changes includes both frontend and backend updates.

Related Issues

Fixes #926

List of Changes

• Added get_default_classification_threshold(project, request) to read threshold from project settings (falling back to request params if apply_defaults=false).

• Added filter_by_score_threshold() filtering queryset method to OccurrenceQuerySet.

• Applied default threshold filtering in:

  OccurrenceViewSet

  TaxonViewSet

  SourceImageViewSet

  SourceImageCollectionViewSet

  EventViewSet

  SummaryView

• Removed OccurrenceDeterminationScoreFilter.

Detailed Description

This PR is the first step toward using default project-level settings filters across the platform.
It introduces support for applying the project’s configured default classification score threshold to multiple API endpoints. When a threshold is defined in the project settings, all relevant endpoints (Occurrences, Taxa, Events, Source Images, Collections, and Summary) automatically filter out records below that threshold.

At the same time, flexibility is preserved: users can bypass the defaults by passing apply_defaults=false in their request, which reverts filtering behavior back to the per-request classification_threshold parameter.

How to Test the Changes

1. Go to the Project Details admin page and set a default classification score threshold.

2. Check that the Occurrence, Taxon, Event, and Summary endpoints all respect the threshold.

3. Add ?apply_defaults=false to API requests and confirm that results are no longer filtered by the project defaults.

4. Remove the flag (or set apply_defaults=true) and confirm that defaults are applied again.

Screenshots

TBD

Deployment Notes

TBD

Checklist

• I have tested these changes appropriately.
• I have added and/or modified relevant tests.
• I updated relevant documentation or comments.
• I have verified that this PR follows the project's coding standards.
• Any dependent changes have already been merged to main."

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Pull Request Overview

Copilot reviewed 17 out of 17 changed files in this pull request and generated 1 comment.

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[Copilot]

This condition will never be reached because the function signature shows project as a required parameter without a default value, but the docstring and logic suggest it should handle None values. Either make project optional with a default of None or remove this check.

[mihow]

• Add a few automated tests. Try testing the summary view counts like we did in the Draft Projects PR.
• I see that the taxa in the taxa list view are showing with scores less than the default threshold.

[mohamedelabbas1996]

• I see that the taxa in the taxa list view are showing with scores less than the default threshold.

This is weird since the default score threshold filter is already applied in get_taxa_observed

antenna/ami/main/api/views.py

Line 1387 in 8968940

.filter_by_score_threshold(project, self.request) # type: ignore