Si possono usare le capacità dell'arcimago "maestro delle forme" e "maestro degli elementi" quando si lanciano incantesimi tramite bastone?

No

suppose you’re an archmage. Can you use thearchmage’s high arcana abilities, such as mastery of elements or mastery of shaping with a staff?

The only high arcana ability that works on a spell cast from a staff is spell power, which increases the archmage’s caster level.