message: added an export for server/core
diff: },
  "import": "./esm/server/index.js"
  },
  + "./server/core": {
  + "require": "./server/core.js",
  + "node":{
  + "require": "./server/core.js",
  + "import": "./server/core.js"
  + },
  + "import": "./esm/server/core.js"
  + },
  "./remult-fastify": {
  "require": "./remult-fastify.js",
  "node":{
  