fix(release): publish scoped package as public

Set publishConfig.access to public so npm publishes @smart-coders-hq/opencode-model-fallback as a public scoped package instead of failing with E402.

Author: blazejpawlak

package.json

@@ -64,6 +64,9 @@
   "bugs": {
     "url": "https://github.com/Smart-Coders-HQ/opencode-model-fallback/issues"
   },
+  "publishConfig": {
+    "access": "public"
+  },
   "engines": {
     "node": ">=18.0.0"
   }