[Function] Refactor to add validations to create_address

[paramsiddharth]

User story:

• this function helps validate the address of the constituent before sending as a lettet
• Select lines 57-80 in lob.js within server > routes/api
• We're going to now make

Copilot Prompts

• Type into chat:
  • [ ] what does this function do
  • [ ] how can I make this more readable
  • [ ] how can I refactor this to be better
• [ ] See if it makes sense to update this file through whats given:

const { line1, city, state, zip } = address;


if (!line1?.trim() || (!zip?.trim() && (!city?.trim() || !state?.trim()))) {
	throw new Error('Address object must contain a primary line (line1) and either a ZIP code or both city and state');
}


if (zip && typeof zip !== 'string') {
	throw new Error('Address object must contain a string-based ZIP code');
}


if (zip && !VALID_US_ZIP_CODE_MATCH.test(zip.trim())) {
	throw new Error(`Address object contained an invalid ZIP code: ${zip.trim()}`);
}

[Dunridge]

Branch: issue-592