Emit events for

### Is your feature request related to a problem?

To communicate Off-Chain, we can do several pull requests but it is not efficient.

The request is to be able to generate an event directly from the SC with value.

The implementation can be similar to TEZOS.

### Describe the solution you'd like

in the SC we can write

actions triggered_by: interval, at: "0 0 1 * *" do
set_type transfer
emit 'step2", address: contract.address, amount: transaction.uco_transfers[contract.address]
end

on the SDK side, a Websocket must be opened on the root address of the SC

transaction
.on("step2", (address, amount) => {

console.log("Transaction sent", Utils.uint8ArrayToHex(address), amount)

}).
listen()

### Additional context

_No response_

The issue names no files or tests; start by tracing smart-contract transaction handling and the SDK WebSocket entry point for a contract’s root address. Done means the proposed smart-contract event with address and amount can be emitted and the SDK can listen for it, with behavior verified by appropriate tests.

Written by the indexing model from the issue text.