Fix package.json license field and add license validation mechanism examples

- Changed package.json license field to 'SEE LICENSE IN LICENSE.md' for better npm tooling compatibility
- Added 'License Validation Mechanisms' section to LICENSE.md with:
  - Description of what license validation mechanisms are (runtime checks, authentication systems, etc.)
  - Specific examples of prohibited modifications (helper.rb, utils.rb, interface files)
  - Clear statement that MIT modifications are allowed but using them to access Pro features violates the Pro License

Co-authored-by: Abanoub Ghadban <[email protected]>

Author: github-actions[bot]

LICENSE.md

@@ -74,3 +74,20 @@ For Pro-licensed code (as defined in the "License Scope" section above), see:
 - Free use is permitted for educational, personal, and non-production purposes
 - Modifying MIT-licensed interface files is permitted under MIT terms
 - However, using those modifications to access Pro features without a valid license violates the Pro License
+
+### License Validation Mechanisms
+
+**License validation mechanisms** include but are not limited to:
+
+- Runtime checks for valid Pro subscriptions
+- Authentication systems in `lib/react_on_rails/utils.rb` and Pro TypeScript modules
+- The `react_on_rails_pro?` method and `rorPro` field generation
+
+**Examples of prohibited modifications** that would constitute unauthorized Pro feature use:
+
+- Modifying `lib/react_on_rails/helper.rb` to bypass `react_on_rails_pro?` checks
+- Altering `lib/react_on_rails/utils.rb` to change the `rorPro` field generation logic
+- Tampering with Pro feature detection in MIT-licensed interface files (e.g., `clientStartup.ts`, `serverRenderReactComponent.ts`, `ReactOnRails.client.ts`, `ReactOnRails.node.ts`)
+- Removing or bypassing license validation calls before accessing Pro features
+
+While MIT-licensed code may be modified under MIT terms, using such modifications to access Pro features without a valid license violates the React on Rails Pro License.

package.json

@@ -118,7 +118,7 @@
     "Rails"
   ],
   "author": "[email protected]",
-  "license": "MIT AND LicenseRef-Proprietary",
+  "license": "SEE LICENSE IN LICENSE.md",
   "bugs": {
     "url": "https://github.com/shakacode/react_on_rails/issues"
   },