Draft: Resolve "Add Delete Function to Leaderboard" (demo)

Closes #1

What does this MR do?

The aim of this is to allow reconciliation retries when processing credit cards, and this MermaidJS diagram really helps get the point across. (tip: type e to see the yaml in MR Edit mode)

gantt
    title A Gantt Diagram for Payment Processor
    dateFormat  YYYY-MM-DD
    section Section
    A task           :a1, 2014-01-01, 30d
    Another task     :after a1  , 20d
    section Another
    Task in sec      :2014-01-12  , 12d
    another task      : 22d

Related issues

• Auto DevOps: Enabling Auto DevOps | Template | Future CI/CD Catalog Direction
• Code Owners: File in the Repo | (Scroll down in MR for inclusion) | Direction | Dogfood
• Security Policies | IaC Vulnerabilities
• GitLab is a CVE Numbering Authority and manages its own Advisories Database
• Native Form Support

Author's checklist (required)

• Relate all corresponding issues
• Write appropriate unit tests
• Write solution
• Preview changes and ensure Unit/Regression Tests are Running and Passing
• Add change to CHANGELOG.md
• Assign to Reviewer

Reviewer's checklist

All reviewers can help ensure accuracy, clarity, completeness, and adherence to the Documentation Guidelines and Style Guide.

• Review by a code reviewer or other selected colleague to confirm accuracy, clarity, and completeness. This can be skipped for minor fixes without substantive content changes.
• Optional: Technical writer review. If not requested for this MR, must be scheduled post-merge. To request for this MR, assign the writer listed for the applicable DevOps stage.
• Assign to Maintainer

Maintainer's Checklist

1. Review by assigned maintainer, who can always request/require the above reviews. Maintainer's review can occur before or after a technical writer review.
2. Ensure a release milestone is set.
3. Merge!

Closes #2

Future Iterations

• Consider List of Engines