feat: implement self-healing online model retraining loop on statistical data drift detection

feat: upgrade fraud detection to XGBoost & SHAP local explanations with premium dashboard

build: completely purge emergent / emergentintegrations references and packages

build(frontend): purge eslint block from craco config and secure docker build memory resources

build(frontend): remove private visual-edits package and bypass webpack eslint on production build

chore: align date-fns version to resolve peer dependency mismatches

feat: NeuralVault 2.0 - Complete Free-Tier Groq & ML Explainability Architecture