Fix lint and type errors in scripts

Type ranks as Record<string, number> to satisfy index-signature
checks, drop the unused locale parameter, unwrap a single-element
Promise.all, and prefix top-level async invocations with void.
Add @types/lodash-es and a minimal tsconfig.json so type-aware
lint resolves @types/node when run on individual files (e.g. via
the vp staged pre-commit hook).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: yangshun

package.json

@@ -26,6 +26,7 @@
     "tsx": "^4.15.1"
   },
   "devDependencies": {
+    "@types/lodash-es": "^4.17.12",
     "typescript": "^5.8.2",
     "vite-plus": "catalog:"
   },

pnpm-lock.yaml

@@ -291,4 +291,4 @@ async function generateAll() {
   );
 }
 
-generateAll();
+void generateAll();

scripts/gen.ts

@@ -5,7 +5,7 @@ import { QuestionMetadata } from './types';
 
 const readFileAsync = util.promisify(fs.readFile);
 
-const ranks = {
+const ranks: Record<string, number> = {
   'explain-hoisting': 1,
   'what-are-the-differences-between-variables-created-using-let-var-or-const': 2,
   'what-is-the-difference-between-double-equal-and-triple-equal': 3,
@@ -58,10 +58,10 @@ const ranks = {
   'how-does-javascript-garbage-collection-work': 50,
 };
 
-async function rankQuestion(dirName: string, locale: string = 'en-US') {
+async function rankQuestion(dirName: string) {
   const metadataPath = path.join('./questions', dirName, 'metadata.json');
 
-  const [metadataFile] = await Promise.all([readFileAsync(metadataPath)]);
+  const metadataFile = await readFileAsync(metadataPath);
 
   const metadata: QuestionMetadata = JSON.parse(String(metadataFile));
 
@@ -94,4 +94,4 @@ async function generate() {
   await rankQuestionList(qns);
 }
 
-generate();
+void generate();

scripts/rank.ts

@@ -0,0 +1,14 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "ESNext",
+    "moduleResolution": "Bundler",
+    "esModuleInterop": true,
+    "resolveJsonModule": true,
+    "strict": true,
+    "skipLibCheck": true,
+    "noEmit": true,
+    "types": ["node"]
+  },
+  "include": ["scripts/**/*.ts", "vite.config.ts"]
+}