Description

Fixing cases in which a null value or empty string in a record payload can cause a 500.

Additional Notes

• null values in address lines (eg "address": {"line": ["123 main", null]})
• empty strings in phone numbers (eg "telecom": {"system": "phone", "value": ""})
• null values in race lists (eg "race": ["asian", null])

Also adding a helper script, scripts/seed_data.py to help with loading large amounts of data into the API.

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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.