Docs: Add Quality page (#1518)

* Docs: Add Quality page

* Add Security section to the Quality guide

Author: sequba

docs/.vuepress/config.js

@@ -173,6 +173,7 @@ module.exports = {
           title: 'Overview',
           collapsable: false,
           children: [
+            ['/guide/quality', 'Quality'],
             ['/guide/supported-browsers', 'Supported browsers'],
             ['/guide/dependencies', 'Dependencies'],
             ['/guide/licensing', 'Licensing'],

docs/guide/quality.md

@@ -0,0 +1,78 @@
+# Quality
+
+HyperFormula is built with the highest standards of software quality, backed by rigorous research, comprehensive testing, and transparent development practices.
+
+## Research Foundation
+
+HyperFormula originated as a research and development project **funded by the European Union**. The project was **successfully executed and positively evaluated** by The National Centre for Research and Development in Poland, validating both the technical approach and implementation quality.
+
+This EU funding provided the foundation for developing a calculation engine that meets the highest academic and industry standards.
+
+## Expert Development Team
+
+HyperFormula is developed by a team of highly qualified experts:
+
+- **Computer Science specialists** with Master's and PhD degrees
+- **Mathematics experts** with deep knowledge in numerical computation
+- **Software engineering professionals** with years of enterprise-grade experience
+
+## Comprehensive Testing
+
+Quality assurance is at the heart of our development process:
+
+- **Nearly 5,000 unit tests** covering all aspects of the calculation engine
+- **97% test coverage** ensuring virtually every line of code is verified
+- Continuous integration across multiple environments
+- Regular performance comparisons between versions
+
+::: tip
+Our high test coverage means you can be confident that HyperFormula will behave predictably in your application, even in complex scenarios.
+:::
+
+## Open Source Transparency
+
+HyperFormula's **entire source code is available on GitHub**, providing complete transparency that allows you to:
+
+- **Inspect the implementation** to understand exactly how calculations are performed
+- **Verify the quality** of the code and development practices
+- **Contribute improvements** or report issues directly to the development team
+- **Build confidence** through code reviews and community oversight
+
+[View the source code on GitHub →](https://github.com/handsontable/hyperformula)
+
+## Real-World Validation
+
+HyperFormula powers **Handsontable**, one of the most popular data grid solutions in JavaScript, trusted by thousands of developers worldwide.
+
+Additionally, HyperFormula is used by many other projects and organizations, providing continuous validation of its stability and performance across diverse applications.
+
+## Security
+
+HyperFormula maintains the highest security standards to protect your applications:
+
+- **Regular external security audits** conducted by independent security experts
+- **Dependency vulnerability scanning** using industry-leading tools including Fossa, Dependabot, and Snyk
+- **Security risk assessments** to identify and mitigate potential threats
+- **Proactive monitoring** of security advisories and immediate response to emerging threats
+
+## Quality Assurance Process
+
+Our development includes multiple quality layers:
+
+1. **Code Reviews** - All changes are peer-reviewed by experienced developers
+2. **Automated Testing** - Comprehensive test suite runs on every commit
+3. **Performance Testing** - Regular benchmarking ensures optimal performance
+4. **Cross-Platform Testing** - Verification across different browsers and Node.js versions
+5. **Documentation Reviews** - All features are thoroughly documented and reviewed
+
+## Professional Support
+
+HyperFormula offers comprehensive support options to ensure your success:
+
+- **Direct contact with the dev team** through GitHub platform
+- **Premium support** for companies using HyperFormula in mission-critical applications
+- **Consulting services** for turn-key solutions, including proof of concepts, deployment strategies, and custom feature development
+
+Our expert team has been supporting enterprises since 2012 and understands how to respond to individual business needs.
+
+[Learn more about support options →](support.md)