fix(backend): correctly check if email service is set up

[ntindle]

I made a mistake in how we check if postmark exists

Changes 🏗️

• adds a more explicit setting of postmark to none and extra checking to prevent its use if it isn’t set

Checklist 📋

For code changes:

• I have clearly listed my changes in the PR description
• I have made a test plan
• I have tested my changes according to the test plan:
  • I have no plan, it’s a simple logic bug so if it passes CI it’s good

[qodo-merge-pro]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 1 🔵⚪⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Silent Failure The email sending silently fails when Postmark is not configured. Consider raising an exception or returning a status to indicate the failure to the caller. if not self.postmark: logger.warning("Email tried to send without postmark configured") return

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[deepsource-io]

Here's the code health analysis summary for commits 43460b8..91ab569. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗
Python	✅ Success	❗ 4 occurences introduced	View Check ↗

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[Pwuts]

looks good to me