Evidence-driven extended scenario models #43

Parent roadmap: #28

Objective

Add new generator families only when concrete trading-system tests require them and quantitative validation supports them.

Candidate scope

• empirical/block-bootstrap scenarios;
• scripted shock scenarios;
• regime/state models;
• other models justified by R&D requirements.

Acceptance criteria

• each new model has a named use case;
• each model has an explicit stochastic contract and reproducibility policy;
• validation metrics are selected before implementation;
• GBM/GARCH/Heston/etc. are not added merely because they are familiar finance models;
• model suitability and limitations are documented.

Tasks

• Evaluate empirical and block-bootstrap scenario baseline #84
• Design explicit scripted shock and regime scenarios #85
• Define model registry, suitability matrix and validation requirements #86