docs(protocol): clarify roadmap status

Author: alpha912

CHANGELOG.md

@@ -21,6 +21,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Updated project structure documentation
 - Adjusted README to remove unverified deployment claims
 - Updated maintainer contact details
+- Updated roadmap to remove unverified test network/pilot claims
 
 ### Deprecated
 - Nothing yet

README.md

@@ -93,9 +93,8 @@ the repository documentation.
 ### v0.1 (Current)
 
 - ✅ Core protocol specification
-- ✅ Reference implementation
-- ✅ Test network
-- 🔄 First pilot cities
+- ✅ Reference documentation and schemas
+- ⏳ Prototype implementations (in progress)
 
 ### v0.2 (Planned)