feat(linking): implement possible match short-term

[alhayward]

Description

[Provide a brief description of the changes implemented in this pull request.]

Related Issues

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Additional Notes

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<--------------------- REMOVE THE LINES BELOW BEFORE MERGING --------------------->

Checklist

Please review and complete the following checklist before submitting your pull request:

• I have ensured that the pull request is of a manageable size, allowing it to be reviewed within a single session.
• I have reviewed my changes to ensure they are clear, concise, and well-documented.
• I have updated the documentation, if applicable.
• I have added or updated test cases to cover my changes, if applicable.
• I have minimized the number of reviewers to include only those essential for the review.

Checklist for Reviewers

Please review and complete the following checklist during the review process:

• The code follows best practices and conventions.
• The changes implement the desired functionality or fix the reported issue.
• The tests cover the new changes and pass successfully.
• Any potential edge cases or error scenarios have been considered.

[codecov]

Codecov Report

Attention: Patch coverage is 89.65517% with 3 lines in your changes missing coverage. Please review.

Project coverage is 94.79%. Comparing base (800265a) to head (407d0ef).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/recordlinker/schemas/algorithm.py	75.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #111      +/-   ##
==========================================
- Coverage   95.18%   94.79%   -0.39%     
==========================================
  Files          25       26       +1     
  Lines        1183     1288     +105     
==========================================
+ Hits         1126     1221      +95     
- Misses         57       67      +10     

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