Add system to keep track of records under review

[dglemos]

Description

New endpoints:

• gene2phenotype/api/review_queue/
• gene2phenotype/api/review_queue/<case_id>/

To flag a record for review you need to create a case

Endpoint: gene2phenotype/api/review_queue/
Action: POST
Input data:

{
    "stable_id": "G2P00010",
    "created_by": "dlemos@ebi.ac.uk",
    "assigned_to": null,
    "items": [
        {"component": "disease", "details": {}, "status": "open"},
        {"component": "disease_cross_reference", "details": {"omim": "wrong ID"}, "status": "open"}
    ]
}

To update an existing case (for example update the status of each item)

Endpoint: gene2phenotype/api/review_queue/<case_id>/
Action: PATCH
Input data:

{
    "stable_id": "G2P00010",
    "created_by": "dlemos@ebi.ac.uk",
    "assigned_to": "dlemos@ebi.ac.uk",
    "items": [
        {"component": "disease", "status": "resolved", "comment": "Updated on 2026-03-25"},
        {"component": "disease_cross_reference", "status": "resolved"}
    ]
}

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JIRA Ticket

G2P-701

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Web update: EBI-G2P/gene2phenotype_web#208

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Contributor Checklist

• The code compiles and runs as expected
• Relevant unit tests are added or updated
• All unit tests are passing
• Code follows the G2P Coding Guidelines
• Documentation (code comments, confluence, etc.) has been updated as needed

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Reviewer Checklist

Please follow the Code Review Guidelines when reviewing this PR.

• I have followed all review guidelines