docs: add v0.2.0 CHANGELOG entry

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: vveerrgg

CHANGELOG.md

@@ -7,6 +7,28 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.2.0] - 2026-03-06
+
+### Changed
+- **SimpleWebAuthn 13:** Upgraded from previous major version
+- **Noble 2.0 migration:** `@noble/curves` ^2.0.1, `@noble/hashes` ^2.0.1
+- **Vitest 4:** Upgraded test framework
+- **nostr-crypto-utils** dependency upgraded to ^0.6.0
+- Dropped Node.js 16 support
+
+### Added
+- NIP-44 settings encryption via nostr-crypto-utils v0.5.1
+
+### Fixed
+- Resolved TypeScript build errors for `AuthenticatorTransport` and bech32 types
+- Default `userVerification` set to `required`; fixed bech32 npub encoding
+- Session limits, `Secure` cookies, credential storage bounds
+- Full FIDO2 WebAuthn verification implementation
+- Resolved npm audit vulnerabilities
+
+### Security
+- Eliminated elliptic HIGH vulnerability by updating nostr-crypto-utils
+
 ## [0.1.1] - 2025-02-19
 
 ### Changed