refactor(utils-node): update jsdocs and var renames

lib/utils/node.js

@@ -1,12 +1,11 @@
+import path from "node:path"
 import { readFile } from "node:fs/promises"
-import { join, resolve } from "node:path"
-
 import { cyan } from "./colors.js"
 
 /**
  * Format Node.js `process.hrtime()` output to a human readable string.
  *
- * @param {[number, number]} input
+ * @param {[number, number]} input Node.js `process.hrtime()` output
  * @returns {string}
  *
  * @example
@@ -40,21 +39,21 @@ export const getNodeVersion = () => {
 /**
  * Read a file and parse it as JSON.
  *
- * @param {string} path
+ * @param {string} input File path
  *
  * @returns {Promise<Record<string, unknown>>}
  * @example
  * readFileAsJSON("/home/user/tsd-lite-cli/package.json")
  * // => { name: "tsd-lite-cli", version: "1.0.0", ... }
  */
-export const readFileAsJSON = path =>
-  readFile(path, "utf8")
+export const readFileAsJSON = input =>
+  readFile(input, "utf8")
     .then(buffer => JSON.parse(buffer.toString()))
     .catch(error => {
       console.error(
         "readFileAsJSON",
         "ERROR",
-        `Failed to parse JSON file: ${cyan.fg(path)}`
+        `Failed to parse JSON file: ${cyan.fg(input)}`
       )
 
       throw error
@@ -78,7 +77,9 @@ export const readFileAsJSON = path =>
  */
 export const getPackageInfo = () => {
   const __dirname = new URL(import.meta.url).pathname
-  const path = join(__dirname, "..", "..", "..", "package.json")
+  const filePath = path.join(__dirname, "..", "..", "..", "package.json")
 
-  return /** @type {Promise<PackageJSON>} */ (readFileAsJSON(resolve(path)))
+  return /** @type {Promise<PackageJSON>} */ (
+    readFileAsJSON(path.resolve(filePath))
+  )
 }