fix(export): add individual exports

Author: djMax

package.json

@@ -3,7 +3,11 @@
   "version": "1.1.0",
   "description": "Project generator for @openapi-typescript-infra services",
   "type": "module",
-  "exports": "./build/index.js",
+  "exports": {
+    ".": "./build/index.js",
+    "./api": "./build/apiProject.js",
+    "./handlers": "./build/handlers.js"
+  },
   "author": "Max Metral <[email protected]>",
   "license": "MIT",
   "config": {