WIP: refactor: port to JS

This should hopefully reduce the complexity of the action

package.json

@@ -0,0 +1,66 @@
+{
+  "name": "nix-flake-outputs-size-report",
+  "description": "Use 'nix-path-info' to query the size of outputs and produce a markdown report",
+  "version": "0.1.0",
+  "author": "Jalil David Salamé Messina",
+  "type": "module",
+  "private": true,
+  "homepage": "https://git.salame.cl/jalil/nix-flake-outputs-size#readme",
+  "repository": {
+    "type": "git",
+    "url": "git+https://git.salame.cl/jalil/nix-flake-outputs-size.git"
+  },
+  "bugs": {
+    "url": "https://git.salame.cl/jalil/nix-flake-outputs-size/issues"
+  },
+  "keywords": [
+    "actions"
+  ],
+  "exports": {
+    ".": "./dist/index.js"
+  },
+  "engines": {
+    "node": ">=20"
+  },
+  "scripts": {
+    "bundle": "npm run format:write && npm run package",
+    "ci-test": "NODE_OPTIONS=--experimental-vm-modules NODE_NO_WARNINGS=1 npx jest",
+    "coverage": "npx make-coverage-badge --output-path ./badges/coverage.svg",
+    "format:write": "npx prettier --write .",
+    "format:check": "npx prettier --check .",
+    "lint": "npx eslint .",
+    "local-action": "npx @github/local-action . src/main.js .env",
+    "package": "npx rollup --config rollup.config.js",
+    "package:watch": "npm run package -- --watch",
+    "test": "NODE_OPTIONS=--experimental-vm-modules NODE_NO_WARNINGS=1 npx jest",
+    "all": "npm run format:write && npm run lint && npm run test && npm run coverage && npm run package"
+  },
+  "license": "MIT",
+  "dependencies": {
+    "@actions/artifact": "^2.3.2",
+    "@actions/core": "^1.11.1",
+    "@actions/exec": "^1.1.1",
+    "@actions/github": "^6.0.1"
+  },
+  "devDependencies": {
+    "@eslint/compat": "^1.3.1",
+    "@github/local-action": "^3.2.1",
+    "@jest/globals": "^30.0.4",
+    "@rollup/plugin-commonjs": "^28.0.6",
+    "@rollup/plugin-json": "^6.1.0",
+    "@rollup/plugin-node-resolve": "^16.0.1",
+    "eslint": "^9.30.1",
+    "eslint-config-prettier": "^10.1.5",
+    "eslint-plugin-import": "^2.32.0",
+    "eslint-plugin-jest": "^29.0.1",
+    "eslint-plugin-prettier": "^5.5.1",
+    "jest": "^30.0.4",
+    "make-coverage-badge": "^1.2.0",
+    "prettier": "^3.6.2",
+    "prettier-eslint": "^16.4.2",
+    "rollup": "^4.44.2"
+  },
+  "optionalDependencies": {
+    "@rollup/rollup-linux-x64-gnu": "*"
+  }
+}