Upgrade action runtime to Node 24, upgrade dependencies

.github/workflows/build.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: actions/checkout@v6
       - uses: actions/setup-node@v6
         with:
-          node-version: "20.x"
+          node-version: "24.x"
       - run: npm ci
       - run: rm -rf dist/*
       - run: npm run build

.jest/resolver.cjs

@@ -0,0 +1,28 @@
+/**
+ * Custom resolver that maps .js imports to .ts files for source files,
+ * but leaves node_modules imports alone (prevents moduleNameMapper
+ * from hijacking a package's internal relative imports).
+ */
+
+module.exports = (request, options) => {
+  const { basedir, defaultResolver } = options;
+
+  // For imports from within node_modules, skip any .js→.ts remapping
+  if (basedir && basedir.includes("/node_modules/")) {
+    return defaultResolver(request, options);
+  }
+
+  // For relative .js imports from src/, try resolving as .ts first
+  if (request.match(/^\.\.?\//)) {
+    const tsRequest = request.replace(/\.js$/, ".ts");
+    if (tsRequest !== request) {
+      try {
+        return defaultResolver(tsRequest, options);
+      } catch {
+        // fall through to default resolution
+      }
+    }
+  }
+
+  return defaultResolver(request, options);
+};

.nvmrc

@@ -0,0 +1 @@
+24

action.yml

@@ -2,7 +2,7 @@ name: Read
 author: Katy DeCorah
 description: Looks up books information given an issue with the title of an ISBN.
 runs:
-  using: node20
+  using: node24
   main: dist/index.js
 branding:
   icon: book

babel.config.json

@@ -1,6 +1,6 @@
 {
   "presets": [
-    ["@babel/preset-env", { "targets": { "node": "current" } }],
+    ["@babel/preset-env", { "targets": { "node": "current" }, "modules": "commonjs" }],
     "@babel/preset-typescript"
   ]
 }