chore: modernize project tooling and example app

[mrbrentkelly]

Summary

• Regenerate library files using latest version of react-native-builder-bob and Expo 55
  • Migrate CI from CircleCI to GitHub Actions
  • Upgrade from Yarn Classic to Yarn 4 with PnP
  • Replace bare React Native example app with Expo-based example
• Add expo plugin for setting up native projects for Detox Context

[sasnyk-hudl]

✅ Snyk checks have passed. No issues have been found so far.

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✅	Open Source Security	0	0	0	0	0 issues
✅	Licenses	0	0	0	0	0 issues
✅	Code Security	0	0	0	0	0 issues

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[orca-security-us]

Orca Security Scan Summary

Status	Check	Issues by priority
Passed	Infrastructure as Code	0   0   0   0	View in Orca
Failed	Secrets	0   0   1   0	View in Orca

🔑 The following Secrets have been detected in your pull request across all commits

⚠️ Please take action to mitigate the risk of the identified secrets by revoking them, and if already in use, updating all dependent systems

	NAME	FILE	LINE NUM	COMMIT
	Generic High Entropy Secret	...ases/yarn-4.11.0.cjs	583	c1dd3c3	View in code

[orca-security-us]

Orca Security Scan Summary

Status	Check	Issues by priority
Failed	Secrets	0   0   1   0	View in Orca

🔑 The following Secrets have been detected in your pull request across all commits

⚠️ Please take action to mitigate the risk of the identified secrets by revoking them, and if already in use, updating all dependent systems

	NAME	FILE	LINE NUM	COMMIT
	Generic High Entropy Secret	...ases/yarn-4.11.0.cjs	583	c1dd3c3	View in code