Check for and apply updates to Sovereign AI Stack dependencies.

Steps:
1. Run `cargo run --quiet -- stack versions` to check latest crates.io versions
2. Run `cargo tree | grep -E "trueno|aprender|realizar|pacha|renacer"` to show current versions
3. If updates are available, run `cargo update trueno aprender realizar pacha renacer alimentar entrenar`
4. Run `cargo test --lib` to verify updates don't break anything

Report what was updated and any test failures.
