chore: support IPv6 fallback in IP autodetection

[GabriellePoncey]

Summary

If no IPv4 address is found, fall back to the first available IPv6 address rather than returning an error.

Changes

• Updated getFirstIP to scan all interfaces for both IPv4 and IPv6 addresses, returning IPv4 if found, otherwise IPv6, otherwise an error

Testing

• Manual verification on a host with only IPv6 interfaces

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Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

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Run ID: 459f8db7-fb9c-47f7-befe-bd556882e873

📥 Commits

Reviewing files that changed from the base of the PR and between fea3b6a and 1c466e1.

📒 Files selected for processing (1)

• server/internal/config/config.go

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/PLAT-669/ip-autodetection-fix

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[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

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