Extend PUT /contacts/:id route to support updating phones, emails, and
addresses arrays with replacement semantics. Uses atomic transactions
to DELETE all existing multi-values then INSERT new ones. Validates
all multi-value fields before updating. Response includes full contact
with multi-value fields via loadMultiValueFields() helper.
Backward compatible: multi-value fields only replaced when present in
request body. Scalar fields (name, category, etc.) continue to work
independently.
Tests added:
- Update with multi-value fields (replacement semantics verified)
- Validation error on invalid phone data (400)
- Backward compatibility: update without multi-values preserves them
All 109 tests pass.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Ulas Kalayci
0dc303b81a