## 1. Demo Artifacts

- [x] 1.1 Add fixed payment-timeout request payload.
- [x] 1.2 Add PowerShell script to run chat, trace, and feedback steps.
- [x] 1.3 Add output directory documentation without committing generated outputs.

## 2. Interview Documentation

- [x] 2.1 Add interview walkthrough for the demo story.
- [x] 2.2 Add trace inspection checklist.
- [x] 2.3 Update `mvp/demo/README.md` to link the runnable demo package.

## 3. Tracking And Validation

- [x] 3.1 Add slug-based issue and devflow tracking files.
- [x] 3.2 Run OpenSpec validation.