fix: enforce canonical factor contract json (#15)

tests/test_governed_pipeline.py

@@ -119,6 +119,24 @@ def test_governed_slice_is_reproducible_and_creates_only_paper_intent() -> None:
     assert result.order_intent.environment == "paper"
     assert result.order_intent.risk_decision_id == result.risk_decision.decision_id
     assert result.order_intent.portfolio_target_id == result.portfolio_target.target_id
+    assert result.factor_version.version_id == "factor:demo-momentum@1.0.0"
+    assert result.factor_version.definition_sha256 == "b" * 64
+    assert result.strategy_version.version_id == "strategy:demo-top2@1.0.0"
+    assert result.backtest_run.run_id == (
+        "backtest-run:e74403571f6a73c98b380220748957a422518c0bed883fabc4b93ebe13f05a37"
+    )
+    assert result.backtest_run.config_hash == (
+        "40a3c804a2dc940161a626d1a5d25817c13463e685005e37fc48c41d1e20b87b"
+    )
+    assert result.portfolio_target.target_id == (
+        "portfolio-target:ab2d398489aa9a292ee155a1098e9340beac0a924874cdaeb5b7b4d379ac9ce8"
+    )
+    assert result.risk_decision.decision_id == (
+        "risk-decision:95924926bd327e44beeb15a63f47d14c5e77b97533fc3227fba2eda68e9b423d"
+    )
+    assert result.order_intent.intent_id == (
+        "order-intent:73c349086c2c05b68424ace9286896eb21507b9080da5ff9b96b58c88d8f6ac1"
+    )
 
     repeated = run_governed_factor_slice(
         factor_scores=_scores(),