fix(datasource_activerecord): implement blank, present & missing filter operators with proper string handling

[matthv]

Definition of Done

General

• Write an explicit title for the Pull Request, following Conventional Commits specification
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[qltysh]

2 new issues

Tool	Category	Rule	Count
qlty	Structure	Function with high complexity (count = 7): compute_main_operator	1
qlty	Structure	Function with many parameters (count = 4): build_comparison_query	1

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[qltysh]

Diff Coverage: The code coverage on the diff in this pull request is 42.1%.

Total Coverage: This PR will decrease coverage by 0.09%.

File Coverage Changes

Path	File Coverage Δ	Indirect
packages/forest_admin_datasource_active_record/lib/forest_admin_datasource_active_record/utils/query.rb	1.9
packages/forest_admin_datasource_toolkit/lib/forest_admin_datasource_toolkit/components/query/condition_tree/operators.rb	0.1

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• Diff Coverage: Coverage for added or modified lines of code (excludes deleted files). Learn more.

• Total Coverage: Coverage for the whole repository, calculated as the sum of all File Coverage. Learn more.

• File Coverage: Covered Lines divided by Covered Lines plus Missed Lines. (Excludes non-executable lines including blank lines and comments.)

  • Indirect Changes: Changes to File Coverage for files that were not modified in this PR. Learn more.

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[qltysh]

Function with many parameters (count = 4): build_comparison_query [qlty:function-parameters]