chore: bump version to 1.3.0

Update version to 1.3.0 and add changelog entry for PURL_Type enum
integration from @socketsecurity/registry.

Author: jdalton

CHANGELOG.md

@@ -6,6 +6,13 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+## [1.3.0] - 2025-10-06
+
+### Added
+- Re-exported `PURL_Type` enum from `@socketsecurity/registry` for type-safe package ecosystem identifiers
+- Re-exported `EcosystemString` type for type annotations requiring valid PURL type strings
+- Documentation and usage examples for `PURL_Type` enum in README
+
 ## [1.2.0](https://github.com/SocketDev/socket-packageurl-js/releases/tag/v1.2.0) - 2025-10-04
 
 ### Added

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@socketregistry/packageurl-js",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "license": "MIT",
   "description": "Socket.dev optimized package override for packageurl-js",
   "keywords": [