chore(nodejs): extract transport and buffer from sender, add back support for core http (#48)

Author: glasstiger

.gitignore

@@ -3,5 +3,4 @@ coverage
 .idea
 *.iml
 .DS_Store
-certs
 dist

package.json

@@ -7,6 +7,7 @@
     "build": "bunchee",
     "eslint": "eslint src/**",
     "typecheck": "tsc --noEmit",
+    "format": "prettier --write '{src,test}/**/*.{ts,js,json}'",
     "docs": "pnpm run build && jsdoc ./dist/cjs/index.js README.md -d docs",
     "preview:docs": "serve docs"
   },