[WIP]

What

• Introduce internal event subscribers to intercept all entities mutation event and forward them to the module service to aggregate event when a method is wrapped within @EmitEvents
• Fix all module methods not properly handling transaction flow
• Remove unused event builder that are not needed anymore
• cleanup module implementation to remove event related management to rely on the new interceptor
• [Product] Start creating convention to tests events
  • Separating events expectation from business validation in the integration tests
  • To be applied to all modules as we move but potentially separately from that pr
• Add missing context where needed
• Fix event object shape (like in inventory where reservation-item should have been reservation_item to follow the convention)