refactoring: Refactor EventBridge worker initialisation

- Move perpetual and ephemeral worker setup out of the EventBridge constructor.

- Add initialisePerpetualBridge() and initialiseEphemeralBridge() methods to explicitly initialize and register workers as needed.

- Simplifies the constructor and improves control over worker lifecycle and registration timing.

Signed-off-by: Goran Mišković <[email protected]>

Author: schkovich