PM-26727 - Bring back references section (#502)

Author: theMickster

CLAUDE.md

@@ -56,3 +56,13 @@ PasswordManagerClient ([bitwarden-pm](crates/bitwarden-pm/src/lib.rs)) wraps
 **Breaking API changes**
 
 - Document migration path for clients.
+
+## References
+
+- [SDK Architecture](https://contributing.bitwarden.com/architecture/sdk/)
+- [Architectural Decision Records (ADRs)](https://contributing.bitwarden.com/architecture/adr/)
+- [Contributing Guidelines](https://contributing.bitwarden.com/contributing/)
+- [Setup Guide](https://contributing.bitwarden.com/getting-started/sdk/internal/)
+- [Code Style](https://contributing.bitwarden.com/contributing/code-style/)
+- [Security Whitepaper](https://bitwarden.com/help/bitwarden-security-white-paper/)
+- [Security Definitions](https://contributing.bitwarden.com/architecture/security/definitions)