chore(npm): add .npmignore file to exclude unnecessary files and directories from npm package

Author: AxiosLeo

.npmignore

@@ -0,0 +1,23 @@
+runtime/*
+.github/*
+tests/*
+coverage/*
+.nyc_output/*
+package-lock.json
+nyc.config.js
+.idea/*
+node_modules/*
+.appveyor.yml
+.vscode/*
+README-CN.md
+README.md
+examples/*
+logs/*
+.vscode/*
+Dockerfile
+docker-compose.yml
+pnpm-lock.yaml
+ecosystem.config.js
+nodemon.json
+.env.example
+.dockerignore