Revert unwanted formatting changes from b0cba2b

Keep only the substantive content changes:
- Update seed to 19012026 (matching regenerated tune.rds)
- Fix terra::predict() model path: autotuner_rf$learner$model$model
- Add mention of mlr3spatial as alternative for predictions

Revert all automatic formatter changes (= to <-, spacing, etc.)

Author: jannes