Add Elm example for PSPDFKit integration

- Created a new Elm example project demonstrating the integration of PSPDFKit for Web.
- Added essential files including package.json, README.md, and webpack configuration for build setup.
- Implemented a basic HTML structure with a PDF viewer using PSPDFKit.
- Included scripts for running the application and managing dependencies.
- Added a sample PDF for demonstration purposes and configured the application to handle annotations.
- Introduced a .gitignore file to exclude unnecessary files and directories.
- Provided detailed instructions in the README for getting started and running the example.

Author: ritz078

examples/elm/.gitignore

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+node_modules
+elm-stuff

examples/elm/LICENSE

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+The PSPDFKit Sample applications are licensed with a modified BSD
+license. In plain language: you're allowed to do whatever you wish
+with the code, modify, redistribute, embed in your products (free or
+commercial), but you must include copyright, terms of usage and
+disclaimer as stated in the license.
+
+You will require a commercial PSPDFKit License to run these examples
+in non-demo mode. Please refer to [email protected] for details.
+
+Copyright © 2017-2025 PSPDFKit GmbH.
+All rights reserved.
+
+Redistribution and use in source or binary forms,
+with or without modification, are permitted provided
+that the following conditions are met:
+
+- Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+- Redistributions in binary form must reproduce the above copyright
+  notice, this list of conditions and the following disclaimer in the
+  documentation and/or other materials provided with the
+  distribution.
+
+- Redistributions of PSPDFKit Samples must include attribution to
+  PSPDFKit, either in documentation or other appropriate media.
+
+- Neither the name of the PSPDFKit, PSPDFKit GmbH, nor its developers
+  may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

examples/elm/README.md

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+# Nutrient Web SDK Example – Elm
+
+This example shows how to integrate [Nutrient Web SDK](https://www.nutrient.io/web/) into an [Elm](https://elm-lang.org/) app.
+
+## Prerequisites
+
+- [Node.js](http://nodejs.org/)
+- A Nutrient Web SDK license. If you don't already have one
+  you can [request a free trial here](https://www.nutrient.io/try/).
+
+## Support, Issues and License Questions
+
+PSPDFKit offers support for customers with an active SDK license via https://www.nutrient.io/support/request/
+
+Are you [evaluating our SDK](https://www.nutrient.io/try/)? That's great, we're happy to help out! To make sure this is fast, please use a work email and have someone from your company fill out our sales form: https://www.nutrient.io/sales/
+
+## Getting Started
+
+Clone the repo:
+
+```bash
+git clone https://github.com/PSPDFKit/pspdfkit-web-example-elm.git
+cd pspdfkit-web-example-elm
+```
+
+Install the project dependencies with `npm`:
+
+```bash
+npm install
+```
+
+Now that everything is installed we need to configure the app to use our [Nutrient Web SDK license key](https://www.nutrient.io/guides/web/current/standalone/integration).
+
+Edit `./config/license-key` and replace the string `YOUR_LICENSE_KEY_GOES_HERE` with the license key that you received via e-mail.
+
+## Running the Example
+
+We are ready to launch the app! 🎉
+
+```bash
+npm run start
+```
+
+You can now open http://localhost:3000 in your browser and enjoy!
+
+## License
+
+This software is licensed under a [modified BSD license](LICENSE).
+
+## Contributing
+
+Please ensure
+[you have signed our CLA](https://www.nutrient.io/guides/web/current/miscellaneous/contributing/) so that we can
+accept your contributions.

examples/elm/assets/example.pdf

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+const path = require("node:path");
+const HtmlWebpackPlugin = require("html-webpack-plugin");
+const CopyWebpackPlugin = require("copy-webpack-plugin");
+
+module.exports = {
+  entry: path.resolve(__dirname, "../src/index.js"),
+  mode: "development",
+  resolve: {
+    extensions: [".js", ".elm"],
+  },
+  output: {
+    publicPath: "",
+  },
+  module: {
+    rules: [
+      {
+        test: /\.elm$/,
+        exclude: [/elm-stuff/, /node_modules/],
+        use: {
+          loader: "elm-webpack-loader",
+        },
+      },
+    ],
+  },
+  plugins: [
+    new HtmlWebpackPlugin(),
+    new CopyWebpackPlugin({
+      patterns: [
+        {
+          from: "./node_modules/pspdfkit/dist/pspdfkit-lib",
+          to: "./pspdfkit-lib",
+        },
+        {
+          from: "./assets/example.pdf",
+          to: "./example.pdf",
+        },
+      ],
+    }),
+  ],
+
+  devServer: {
+    port: 3000,
+  },
+};

examples/elm/config/license-key

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+{
+  "type": "application",
+  "source-directories": ["src"],
+  "elm-version": "0.19.1",
+  "dependencies": {
+    "direct": {
+      "elm/browser": "1.0.1",
+      "elm/core": "1.0.2",
+      "elm/html": "1.0.0"
+    },
+    "indirect": {
+      "elm/json": "1.1.2",
+      "elm/time": "1.0.0",
+      "elm/url": "1.0.0",
+      "elm/virtual-dom": "1.0.2"
+    }
+  },
+  "test-dependencies": {
+    "direct": {},
+    "indirect": {}
+  }
+}