Node: Fix CommonJS packaging in @herb-tools/node (#375)

This Pull Request fixes the packaging for CJS consumers of the Node
package.

Previously, the CommonJS entry failed due to a Rollup bundling
configuration issue in `@herb-tools/node`. The package used separate
`.cts/.mts` source files, but Rollup wasn't properly bundling local
dependencies for the CJS build, leaving runtime requires that failed.
This change adopts the established pattern: a single `src/index.ts`
source file that Rollup transforms into both ESM and CJS outputs. This
matches the proven strategy used by the other packages.

This change adopts the established pattern: a single `src/index.ts`
source file that Rollup transforms into both ESM and CJS outputs. This
matches the strategy used by the other packages.

Co-authored-by: Marco Roth <marco.roth@intergga.ch>

Author: fc-anjos

javascript/packages/node/package.json

@@ -14,14 +14,18 @@
   "gypfile": true,
   "main": "./dist/herb-node.cjs",
   "module": "./dist/herb-node.esm.js",
-  "types": "./dist/types/index-esm.d.mts",
+  "types": "./dist/types/index.d.ts",
   "exports": {
     "./package.json": "./package.json",
     ".": {
-      "types": "./dist/types/index-esm.d.mts",
-      "import": "./dist/herb-node.esm.js",
-      "require": "./dist/herb-node.cjs",
-      "default": "./dist/herb-node.esm.js"
+      "import": {
+        "types": "./dist/types/index.d.ts",
+        "default": "./dist/herb-node.esm.js"
+      },
+      "require": {
+        "types": "./dist/types/index.d.ts",
+        "default": "./dist/herb-node.cjs"
+      }
     }
   },
   "scripts": {

javascript/packages/node/rollup.config.mjs

@@ -1,5 +1,6 @@
 import typescript from "@rollup/plugin-typescript"
 import { nodeResolve } from "@rollup/plugin-node-resolve"
+import commonjs from "@rollup/plugin-commonjs"
 import json from "@rollup/plugin-json"
 
 const external = [
@@ -23,7 +24,7 @@ function isExternal(id) {
 
 export default [
   {
-    input: "src/index-esm.mts",
+    input: "src/index.ts",
     output: {
       file: "dist/herb-node.esm.js",
       format: "esm",
@@ -43,20 +44,23 @@ export default [
   },
 
   {
-    input: "src/index-cjs.cts",
+    input: "src/index.ts",
     output: {
       file: "dist/herb-node.cjs",
       format: "cjs",
       sourcemap: true,
     },
     external: isExternal,
     plugins: [
-      nodeResolve(),
-      json(),
       typescript({
         tsconfig: "./tsconfig.json",
+        declaration: true,
+        declarationDir: "./dist/types",
         rootDir: "src/",
       }),
+      nodeResolve({ extensions: [".js", ".ts", ".cts"] }),
+      commonjs({ extensions: [".js", ".cjs", ".cts"], ignoreDynamicRequires: true }),
+      json(),
     ],
   },
 ]