Revise C4 Level 3 Data Tier diagram details according to teacher's co…

[JeremyNRoos]

…mments

🚀 Pull Request Overview

📌 Summary

🔗 Related Issues

Closes #

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🧪 Changes

✅ What’s Included

❌ What’s Not Included

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🧪 Testing

🔍 How Was This Tested?

🧪 Test Coverage

• Unit tests added/updated
• Integration tests added/updated
• End-to-end scenarios tested manually

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🧩 Breaking Changes

Does this PR introduce breaking changes?

• Yes
• No

If yes, describe the impact and migration steps:

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🔐 Security Considerations

• This PR affects authentication or authorization
• This PR touches secrets, tokens, or environment variables
• This PR affects infrastructure or deployment pipeline

If checked, explain:

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📝 Documentation

Does this PR require updates to documentation?

• Yes
• No

If yes, update the relevant locations:

• /docs
• README.md
• API reference
• Architecture diagrams / C4 / DDD docs

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🎨 UI/UX Considerations (If Applicable)

• Includes new components
• Changes styles or theme tokens
• Requires design approval
• Responsive behavior tested

Screenshots / recordings (if applicable):

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📦 Checklist Before Merge

• Follows project coding style
• PR title follows semantic format (feat:, fix:, chore:, docs:, refactor:, test:)
• All CI checks passing
• No debug logs or commented-out code
• Dependencies reviewed
• No sensitive information added

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👤 Contributor Notes (Optional)