This commit addresses two primary requests:
1. Replaces all console log prefixes `[DEBUG]` (and variations) with `[Secuencial Batcher]`.
2. Extends the `RETURN_TYPES` and `RETURN_NAMES` of all nodes to output a `log` string containing exactly the text emitted via `print()`. This string is constructed by intercepting `print()` calls inside node methods using a local wrapper and appending the texts to a list, which is then returned joined by newlines.