more features checks. setup improvements

docs/features/checked/policy/anchor-aware-determinization-rules-in-policy-engine.md

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+# Anchor-Aware Determinization Rules in Policy Engine
+
+## Module
+Policy
+
+## Status
+VERIFIED
+
+## Description
+Determinization rules that are aware of trust anchors, ensuring policy evaluation produces consistent results based on the trust anchor configuration and signal snapshots.
+
+## Implementation Details
+- **Determinization Gate**: `src/Policy/StellaOps.Policy.Engine/Gates/Determinization/DeterminizationGate.cs` -- determinization gate evaluator
+  - `DeterminizationGateMetrics.cs` -- gate metrics tracking
+  - `ISignalSnapshotBuilder.cs` / `SignalSnapshotBuilder.cs` -- builds signal snapshots for deterministic evaluation
+- **Determinization Policy**: `src/Policy/StellaOps.Policy.Engine/Policies/DeterminizationPolicy.cs` -- determinization policy definition
+  - `DeterminizationRuleSet.cs` -- rule set for determinization
+  - `IDeterminizationPolicy.cs` -- policy interface
+- **Determinization Library**: `src/Policy/__Libraries/StellaOps.Policy.Determinization/` -- core determinization library
+  - `Models/` -- determinization models
+  - `Scoring/` -- determinization scoring
+  - `Evidence/` -- evidence-based determinization
+- **DI Registration**: `src/Policy/StellaOps.Policy.Engine/DependencyInjection/DeterminizationEngineExtensions.cs` -- service registration
+- **Configuration Endpoints**: `src/Policy/StellaOps.Policy.Engine/Endpoints/DeterminizationConfigEndpoints.cs` -- API for determinization configuration
+- **Events**: `src/Policy/StellaOps.Policy.Engine/Subscriptions/DeterminizationEvents.cs` -- determinization event subscriptions
+
+## E2E Test Plan
+- [ ] Configure determinization rules via API and verify they apply during evaluation
+- [ ] Evaluate a policy with signal snapshots and verify deterministic output
+- [ ] Change trust anchor configuration and verify determinization rules adapt
+- [ ] Run same evaluation twice with identical snapshots and verify identical results
+- [ ] Verify determinization metrics are emitted (gate pass/fail counts)
+- [ ] Test determinization configuration endpoint returns current rule set