docs: add dual-license structure with Parity and commercial license terms

- Replaced MIT license with Parity License 7.0.0 for open-source use
- Added COMMERCIAL-LICENSE.md outlining paid use for closed-source/commercial projects
- Updated LICENSE file with reference to paritylicense.com
- Suggested README footer and badge to reflect dual-license model
- Prepared structure for future Gumroad integration or license key enforcement

Author: yesiamrocks

COMMERCIAL-LICENSE.md

@@ -0,0 +1,44 @@
+# Commercial License for triggle.js
+
+Triggle.js is dual-licensed under the Parity License for open-source use, and a commercial license for closed-source or revenue-generating projects.
+
+## Free Use (Parity License)
+
+You can use triggle.js for free if:
+
+- Your project is open source
+- Your codebase is publicly available
+- You do not sell or profit from the project
+
+## Commercial License Required
+
+You must purchase a commercial license if:
+
+- Your project is **not open source**
+- You are using triggle.js in **client work**, **SaaS apps**, **themes/templates**, or **commercial websites**
+- You’re integrating triggle.js into a **paid or proprietary** product
+
+## What’s Included
+
+- Commercial usage rights (lifetime)
+- No attribution required
+- Use in unlimited closed-source or client projects
+- Optional early access and support for updates
+
+## Pricing
+
+| License Type   | Scope                              | Price   |
+| -------------- | ---------------------------------- | ------- |
+| Solo Developer | 1 person, unlimited projects       | $19 USD |
+| Agency / Team  | Up to 10 team members              | $49 USD |
+| Enterprise     | Unlimited seats + priority support | Contact |
+
+One-time payment. No subscriptions.
+
+## Purchase
+
+Email: **hellouxpavel@gmail.com**
+
+## Thank You
+
+Your support helps keep triggle.js actively maintained and evolving for developers like you.

LICENSE

@@ -1,21 +1,23 @@
-MIT License
-
-Copyright (c) 2025 Pavel
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+This software is licensed under the Parity License 7.0.0.
+
+You may use, modify, and share this software freely, as long as any project that uses it is also open source under a license that shares source code under similar terms.
+
+To use this software in a closed-source or commercial product, you must purchase a separate commercial license.
+
+Full license text: https://paritylicense.com/
+
+© 2025 Shafayetul Islam Pavel. All rights reserved.
+
+## Commercial Use
+
+Commercial use — including use in client projects, SaaS platforms, paid apps, or any revenue-generating product — requires a **paid license**.
+
+See `COMMERCIAL-LICENSE.md` to obtain a license.
+
+## Disclaimer
+
+This software is provided "as is" without warranty of any kind. The author is not liable for any damages or losses arising from the use of this software.
+
+---
+
+For questions or licensing inquiries, contact: **hellouxpavel@gmail.com**