Refactor code style and enhance CI workflow

- Standardize code formatting and improve readability in multiple files.
- Enhance CI workflow by adding steps for `pnpm` installation.
- Clarify intent in the helper utilities with enhanced comments and consistent type definitions.

Signed-off-by: katsumata <12413150+winor30@users.noreply.github.com>

Author: winor30

.github/workflows/ci.yml

@@ -17,7 +17,8 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 20
-
+      - name: Install pnpm
+        run: npm install -g pnpm
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
 
@@ -34,7 +35,8 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 20
-
+      - name: Install pnpm
+        run: npm install -g pnpm
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
 
@@ -51,7 +53,8 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: 20
-
+      - name: Install pnpm
+        run: npm install -g pnpm
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
 

.prettierrc

@@ -4,4 +4,4 @@
   "useTabs": false,
   "trailingComma": "all",
   "printWidth": 80
-} 
+}

eslint.config.js

@@ -1,13 +1,12 @@
-import globals from "globals";
-import pluginJs from "@eslint/js";
-import tseslint from "typescript-eslint";
-
+import globals from 'globals'
+import pluginJs from '@eslint/js'
+import tseslint from 'typescript-eslint'
 
 /** @type {import('eslint').Linter.Config[]} */
 export default [
-  {files: ["**/*.{js,mjs,cjs,ts}"]},
-  {ignores: ["node_modules/**", "build/**"]},
-  {languageOptions: { globals: globals.browser }},
+  { files: ['**/*.{js,mjs,cjs,ts}'] },
+  { ignores: ['node_modules/**', 'build/**'] },
+  { languageOptions: { globals: globals.browser } },
   pluginJs.configs.recommended,
   ...tseslint.configs.recommended,
-];
+]