[esitarz]

Summary

• Peer react and react-dom at ^18.3.1 || ^19.0.0, with @hookform/resolvers at ^3.3.4 || ^5.7.1
• Keep OpenID Connect login from main, and keep the JavaScript SDK peer at ^11.1.0 || ^12.0.0
• Add the React 18/19 CI matrix, Vitest coverage, and a packed-consumer check
• Add the issue and pull request templates from chore: Adds issue templates and updates dev toolchain #21

Stacks on #23. This branch contains that commit until #23 merges. Replaces #18 and #22, which targeted development and predate OpenID Connect.

Test plan

• npm test (includes OpenID Connect login redirect)
• npm run lint
• npm run build against ordercloud-javascript-sdk@12.0.0 and React 19.2.8
• Consumer install and build for React 18.3.1 and React 19.2.8
• CI green
• Merge after feat: accept ordercloud-javascript-sdk 11.1 and 12 #23 so Commitizen publishes the next version

[esitarz]

this is failing as expected. It's checking for both React 18 and React 19, React 19 is succeeding.