fix: re-export parseJwt from package root

0.1.38 dropped it from the public API while consumers still import it.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: dbrrt

package.json

@@ -1,6 +1,6 @@
 {
     "name": "keylab",
-    "version": "0.1.38",
+    "version": "0.1.39",
     "packageManager": "bun@1.2.11",
     "type": "module",
     "source": "src/index.ts",

src/index.ts

@@ -3,6 +3,7 @@ export {
     checkTokenValidness,
     createSignedJwt,
     extractBearerTokenFromHeaders,
+    parseJwt,
     pemToJwk,
     getKeyPair,
 } from "./vendors"