initial commit

- add .gitignore
  - node modules
  - generated js files
- add prettier and eslint configurations
  - prettier: some options configured
  - eslint: js linting disabled
- initialize npm, install packages
- add vscode settings
  - prettier formatting on save disabled

eslint.config.mjs

@@ -0,0 +1,18 @@
+import js from "@eslint/js"
+import globals from "globals";
+import tseslint from "typescript-eslint";
+import { defineConfig } from "eslint/config";
+
+export default defineConfig([
+  // { 
+  //   files: ["**/*.{js,mjs,cjs}"], 
+  //   plugins: { js }, 
+  //   extends: ["js/recommended"], 
+  //   languageOptions: { globals: globals.node },
+  // },
+  {files: ["**/*.{ts,mts,cts}"], plugins: { tseslint }, extends: [tseslint.configs.recommended], languageOptions: { globals: globals.node }, 
+    rules: {
+      "@typescript-eslint/no-unused-vars": "warn",
+    },
+  },
+]);