#20968: Phone country code missing in CardDAV sync for contacts created via Workflow (regression of #17182)

Bug Report

Summary

Contacts created via Workflow in Twenty are missing the country code prefix (e.g. +43, +49) when synced to iPhone and macOS Contacts via CardDAV. Contacts imported from HubSpot or created manually are not affected.

Steps to Reproduce

1. Create a contact via a Twenty Workflow (source = WORKFLOW)
2. Sync contacts to iPhone or macOS via CardDAV
3. Observe that the phone number arrives without the country calling code

Expected Behavior

Phone number exported via CardDAV should be in E.164 format:

Actual Behavior

Phone number arrives without calling code: (or just the raw number)

Root Cause (Technical)

Twenty stores phone numbers split across two fields:

• → e.g. (digits only, no )
• → e.g.

The CardDAV export does not combine these into a single E.164 string before writing the vCard property. For contacts that were working correctly (HubSpot-imported), the number appears to be stored differently.

Environment

• Twenty version: current (self-hosted)
• Affected contacts: source = WORKFLOW only
• Unaffected: HubSpot-imported contacts

Related Issues

• Closes #14857 (marked Done, appears to have regressed)
• Closes #17182 (marked Done, appears to have regressed)