feat: add TypeScript type definitions to which-pm-runs

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

Author: zanminkian

which-pm-runs/index.d.ts

@@ -0,0 +1,6 @@
+export interface PMRuns {
+  name: string
+  version: string
+}
+
+export function whichPMRuns (): PMRuns | undefined

which-pm-runs/package.json

@@ -5,8 +5,10 @@
   "type": "module",
   "main": "index.js",
   "exports": "./index.js",
+  "typings": "index.d.ts",
   "files": [
-    "index.js"
+    "index.js",
+    "index.d.ts"
   ],
   "engines": {
     "node": ">=22.13"