sync with dev branch (#26)

* Made the initial build for npm (#25)

* Made the initial build for npm

* fix: update package.json with correct license, description and module type

- Change license from AGPLv3 to MIT to match actual project license
- Replace HTML image tag with proper text description
- Update type to "module" to align with ES module syntax

* Prepare package for npm publishing and bump version to 0.1.1

* Update package.json

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update rollup.config.js

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update rollup.config.js

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix: update test script to use jest and add jest as a devDependency

* fix: remove (still) unused wasm plugin from rollup configuration

* fix: remove unused rollup-plugin-wasm from devDependencies

* fix: revert test script to no tests configured and remove jest from devDependencies

* Add plotly.js as a peer and dev dependency; update Rollup config for external globals

* fix: remove unused rollup-plugin-typescript2 from configuration

* Update README.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix: update import paths in README for consistency with distribution bundle

* fix: correct parameter syntax in addBoundaryCondition example

---------

Co-authored-by: Sridhar.Mani <sridhar.mani@novacastindia.com>
Co-authored-by: Nikos Chamakos <nikoscham@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update author and contributors information in package.json

* Add publishConfig to package.json for public access

---------

Co-authored-by: sridhar <2019309038@student.annauniv.edu>
Co-authored-by: Sridhar.Mani <sridhar.mani@novacastindia.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: 4 people

.gitignore

@@ -0,0 +1,3 @@
+/node_modules
+node_modules
+node_modules/

.npmignore

@@ -0,0 +1,4 @@
+examples/
+test/
+.gitignore
+package-lock.json

README.md

@@ -6,20 +6,67 @@
 
 > 🚧 **FEAScript is currently under heavy development.** Functionality and interfaces may change rapidly as new features and enhancements are introduced. 🚧
 
-## Getting Started
+## Installation
 
-FEAScript is entirely implemented in pure JavaScript and requires only a simple HTML page to operate. All simulations are executed locally in your browser, without the need for any cloud services.
+FEAScript is entirely implemented in pure JavaScript and requires only a simple HTML page to operate. All simulations are executed locally in your browser, without the need for any cloud services. You can use FEAScript in your projects through one of the following methods:
+
+### Option 1: NPM Installation
+
+```bash
+# Install FEAScript and its peer dependencies
+npm install feascript mathjs plotly.js
+```
+
+Then import it in your JavaScript/TypeScript file:
+
+```javascript
+// ES Modules
+import { FEAScriptModel, plotSolution } from "feascript";
+
+// CommonJS
+const { FEAScriptModel, plotSolution } = require("feascript");
+```
+
+**Important:** FEAScript is built as an ES module. If you're starting a new project, make sure to configure it to use ES modules by running:
+
+```bash
+# Create package.json with type=module for ES modules support
+echo '{"type":"module"}' > package.json
+```
+
+If you already have a package.json file, manually add `"type": "module"` to enable ES modules in your project.
+
+### Option 2: Direct Import from CDN
+
+Add this line to your HTML or JavaScript module:
+
+```javascript
+import { FEAScriptModel, plotSolution } from "https://core.feascript.com/dist/feascript.umd.js";
+```
+
+### Option 3: Download and Use Locally
+
+1. Download the latest release from [GitHub Releases](https://github.com/FEAScript/FEAScript-core/releases)
+2. Include it in your project:
+
+```html
+<script type="module">
+  import { FEAScriptModel, plotSolution } from "./path/to/dist/feascript.esm.js";
+  // Your code here
+</script>
+```
 
 ### Example Usage
 
 ```javascript
 // Import FEAScript library
-import { FEAScriptModel, plotSolution } from "https://core.feascript.com/src/index.js";
+import { FEAScriptModel, plotSolution } from "https://core.feascript.com/dist/feascript.umd.js";
 
 // Create and configure model
 const model = new FEAScriptModel();
 model.setSolverConfig("solverType"); // e.g., "solidHeatTransfer" for a stationary solid heat transfer case
-model.setMeshConfig({ // Define mesh configuration (assuming a rectangular domain for 2D)
+model.setMeshConfig({
+  // Define mesh configuration (assuming a rectangular domain for 2D)
   meshDimension: "1D" | "2D", // Mesh dimension
   elementOrder: "linear" | "quadratic", // Element order
   numElementsX: number, // Number of elements in x-direction