Define MVP for supplychain-risk module

modules/supplychain-risk/README.md

@@ -1,4 +1,61 @@
-# Supply-Chain Risk (Quantum tech)
-Owner: Karl M. Kohler
-Goal: /score, /brief + demo dataset.
+# Supply-Chain Risk (Quantum Tech)
 
+**Owner:** Karl M. Kohler
+
+## Scope
+This module provides a **first-order supply-chain risk assessment** for quantum computing components and segments.  
+It is designed as an **independent microservice** within the OpenPolicyStack ecosystem.
+
+Given a region and a quantum component, the service returns:
+- a simple risk score,
+- the main drivers of risk,
+- and a short policy-oriented brief suitable for dashboards or demos.
+
+The MVP deliberately prioritizes **reproducibility, transparency, and a clear interface** over final data completeness or model sophistication.
+
+---
+
+## Inputs (MVP)
+- **country_or_region**  
+  Target economy or region (e.g. EU, US, China).
+
+- **segment_or_component**  
+  Quantum-technology segment or component  
+  (e.g. cryogenics, photonics, ion-trap components, control electronics).
+
+- **optional: scenario**  
+  High-level disruption or policy scenario  
+  (e.g. export restriction, supplier disruption).
+
+- **optional: year / time window**  
+  Included for forward compatibility; not yet used in the MVP logic.
+
+---
+
+## Outputs (MVP)
+- **risk_score**  
+  Relative risk score (0–1 in the current implementation).
+
+- **confidence / risk_level**  
+  Qualitative indicator (e.g. low / medium).
+
+- **key_drivers**  
+  Main contributing factors  
+  (e.g. supplier concentration, low substitutability, policy exposure).
+
+- **brief**  
+  Short text explanation suitable for a policy dashboard or demo interface.
+
+---
+
+## How to Run (MVP)
+
+The MVP exposes a **minimal API**.
+
+### Local setup
+```bash
+cd modules/supplychain-risk
+python3 -m venv .venv
+source .venv/bin/activate
+pip install -r requirements.txt
+uvicorn src.app:app --reload