chore: sync version to 4.42.1 after release

- Update package.json to match published npm version
- Update installer package.json to match

tools/installer/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "bmad-method",
-  "version": "4.37.0-beta.4",
+  "version": "4.42.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "bmad-method",
-      "version": "4.37.0-beta.4",
+      "version": "4.42.1",
       "license": "MIT",
       "dependencies": {
         "chalk": "^4.1.2",

tools/installer/package.json

@@ -1,6 +1,6 @@
 {
   "name": "bmad-method",
-  "version": "4.42.0",
+  "version": "4.42.1",
   "description": "BMad Method installer - AI-powered Agile development framework",
   "keywords": [
     "bmad",