test: capture missing portfolio risk contracts

tests/test_portfolio_risk_contracts.py

@@ -0,0 +1,26 @@
+from __future__ import annotations
+
+
+def test_s41_public_contract_surface_exists() -> None:
+    from quant_engine.portfolio_risk_contracts import (
+        ComputationReceipt,
+        ConstraintSetV1,
+        FreshnessPolicy,
+        PortfolioDecision,
+        RiskAssessment,
+        assess_portfolio_risk,
+        build_portfolio_decision,
+    )
+
+    assert all(
+        symbol is not None
+        for symbol in (
+            ComputationReceipt,
+            ConstraintSetV1,
+            FreshnessPolicy,
+            PortfolioDecision,
+            RiskAssessment,
+            assess_portfolio_risk,
+            build_portfolio_decision,
+        )
+    )