fix: remove CTS types entry from package.json

The types field pointed to a CJS declaration file that is no longer
generated after the ESM-only switch.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: angeloashmore

package.json

@@ -21,7 +21,6 @@
 		"bin"
 	],
 	"type": "module",
-	"types": "./dist/index.d.cts",
 	"exports": {
 		".": "./dist/index.mjs",
 		"./package.json": "./package.json"