Add unit tests for CNN, ConCare, Transformer models and metrics funct…

[v1xerunt]

…ions; implement OMOP dataset tests and quickstart vignettes for EHRShot and eICU-CRD datasets

---

Note

Adds OMOP/eICU/EHRShot datasets and tasks, new CNN/Transformer/AdaCare/ConCare models, multiclass/multilabel/regression metrics, extensive tests, and vignettes; improves processors, trainer, and docs.

• Datasets & Tasks:
  • Add EHRShotDataset, eICUDataset, OMOPDataset with YAML configs.
  • New tasks: BenchmarkEHRShot, MortalityPredictionEICU(+alt), MortalityPredictionOMOP, ReadmissionPredictionOMOP.
• Models:
  • Implement CNN, Transformer, AdaCare, ConCare and supporting layers/utilities.
• Metrics & Core:
  • Add multiclass_metrics_fn, multilabel_metrics_fn, regression_metrics_fn.
  • Enhance TimeseriesProcessor (z-score normalization + fit), MultiClassLabelProcessor (1-based), collate_fn_dict_with_padding (length keys), Trainer (monitor handling), minor BaseDataset tweaks.
• Tests:
  • New unit tests for models, metrics, and OMOP end-to-end; add OMOP test data helper.
• Docs & Site:
  • New vignettes: ehrshot_quickstart, eicu_quickstart; update MedCode/Overview; pkgdown config and GitHub Pages workflow; add NEWS and CRAN comments.
• Housekeeping:
  • Update DESCRIPTION/NAMESPACE, ignores, and minor CI adjustments.

^{Written by Cursor Bugbot for commit a3ac5d2. This will update automatically on new commits. Configure here.}