Refactor validation exceptions#691

Open

sonalguptaabd-bit wants to merge 2 commits intotrailheadapps:mainfrom

sonalguptaabd-bit:refactor-validation-exceptions

Commits on Jan 25, 2026

refactor: implement Opportunity trigger using handler and validation service with tests
sonalguptaabd-bit
committed
refactor: introduce custom validation exceptions for Opportunity
sonalguptaabd-bit
committed