Generate new packages with not only MIT, but also Apache 2.0

[mcmire]

Explanation

The long-standing recommendation from Legal is that use both MIT and Apache 2.0 for our libraries, not just MIT. We had meant to change this in core a while back but kept forgetting. This commit updates the template that the create-package tool uses to generate new packages so that it includes both of these licenses.

This also fixes the MIT license as it was missing a final line.

Manual testing

• Run yarn create-package --name foo --description "The foo package"
• In packages/foo, you should see LICENSE.MIT and LICENSE.APACHE2
• In packages/foo/package.json, license should be "(MIT OR Apache-2.0)"

References

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them

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Note

Low Risk
Low risk: template-only licensing text changes that affect newly generated packages, with no runtime or build logic modifications.

Overview
Updates the create-package package template to generate dual-licensed packages.

Replaces the single MIT LICENSE with a short dual-license notice and adds full LICENSE.MIT and LICENSE.APACHE2 files, and updates the template package.json license field to (MIT OR Apache-2.0).

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[Gudahtt]

Should we have the third LICENSE file as well, pointing at those two? e.g. https://github.com/MetaMask/core/blob/main/packages/wallet/LICENSE

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[Gudahtt]

LGTM!