Fixes #20629 Problem The OpenAPI schema for PHONES composite fields documented additionalPhones as string[], but the actual runtime type (defined in phones.composite-type.ts) is Array<{ number: string, countryCode: string, callingCode: string }>. This caused generated SDK types and API docs for create/update payloads to be incorrect. Root cause A hardcoded mistake in convert-object-metadata-to-schema-properties.util.ts — the FieldMetadataType.PHONES branch set additionalPhones.items to { type: 'string' } instead of an object schema. Changes packages/twenty-server/src/engine/utils/convert-object-metadata-to-schema-properties.util.ts - Changed additionalPhones.items from { type: 'string' } to { type: 'object', properties: { number, countryCode, callingCode } }, matching AdditionalPhoneMetadata. packages/twenty-server/src/engine/core-modules/open-api/utils/__tests__/components.utils.spec.ts - Updated all three inline snapshot occurrences (for ObjectName, ObjectNameForResponse, ObjectNameForUpdate) to expect the correct object shape instead of string. Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>