# Router Authority Claims Integration

## Module
Gateway

## Status
IMPLEMENTED

## Description
`IAuthorityClaimsProvider` integration enabling centralized Authority service to override endpoint claim requirements. Three-tier precedence: Code attributes < YAML config < Authority overrides. EffectiveClaimsStore caches resolved claims.

## Implementation Details
- **Effective claims store**: `src/Gateway/StellaOps.Gateway.WebService/Authorization/EffectiveClaimsStore.cs`, `IEffectiveClaimsStore.cs` -- caches resolved claims with three-tier precedence
- **Authorization middleware**: `src/Gateway/StellaOps.Gateway.WebService/Authorization/AuthorizationMiddleware.cs` -- enforces Authority-provided claim requirements
- **Claims propagation**: `src/Gateway/StellaOps.Gateway.WebService/Middleware/ClaimsPropagationMiddleware.cs` -- propagates resolved claims downstream
- **Gateway value parser**: `src/Gateway/StellaOps.Gateway.WebService/Configuration/GatewayValueParser.cs` -- parses configuration values for claims
- **Source**: batch_52/file_09.md

## E2E Test Plan
- [ ] Verify three-tier precedence: code attributes < YAML config < Authority overrides
- [ ] Test EffectiveClaimsStore caching behaves correctly
- [ ] Verify Authority-provided claim overrides take highest priority
- [ ] Test claims propagation to downstream services