docs(changelog): note governance and compliance docs (#3)

Author: alpha912

CHANGELOG.md

@@ -15,6 +15,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Example JSON payloads for schemas
 - RFC template and RFC 0004 draft
 - Documentation: glossary, FAQ, implementation guide, security guides
+- Governance RFC workflow and RFC-0001 process
+- Compliance docs: threat model and DPIA-lite baseline
 
 ### Changed
 - Clarified LoopSignal voting weight calculations