feat: move account deploy event to factory

[adamegyed]

Motivation

For tracking deployed accounts of a specific type, it is preferable to emit the event from the factory, rather than the account address, because event signatures may be spoofed.

Solution

Remove the ModularAccountInitialized event from UpgradeableModularAccount. The account already emits ValidationInstalled(module, entityId) and Initialized(version) during initialization.

Add ModularAccountDeployed(account, owner, salt) to the factory.

We could also depend on the AccountDeployed event from the EntryPoint, but this has some issues:

• Not indexed on the factory address
• Doesn't fire if the account is deployed directly from the factory, rather than from initCode.