docs: tighten readme structure

refactor: flatten metrics paths and polish project presentation

data: refresh tracked training and evaluation metrics

refactor: polish demo page copy

fix: load serving model with xgboost booster

fix: include model artifacts for hugging face space

docs: add hugging face space metadata

feat: add offline drift checks and inference logging

feat: add ci checks and model metadata versioning

feat: add lightweight docker deployment

feat: add mlflow experiment tracking

init: simplify rossmann forecasting project baseline