Resolve Field Name Conflicts in Managed Package SOQL Queries

Managed Apex dynamic SOQL can now disambiguate a package field from a subscriber's identically named custom field by building a Database.QueryOptions object with withExplicitNamespace(true) and passing it as a bind variable in a SOQL SET OPTIONS clause. With the option set, an unqualified field like Age__c resolves to the package's namespaced field (ExPackageNS__Age__c) instead of failing the duplicate-field-name rule enforced since API 34.0. Queries without SET OPTIONS keep their existing behavior.