Added
- Update strict_min_version to 142.0 for data collection
- Open sourced FlowState under the Apache License 2.0.
- Added community and governance files: LICENSE, CONTRIBUTING.md, CODE_OF_CONDUCT.md, and SECURITY.md.
- Added GitHub Actions CI pipeline (ci.yml) and automated Chrome & Firefox release packaging workflow (release.yml) on Node.js 22.
- Added Chrome Web Store and Firefox Add-ons download badges to README.md.

Changes
- Unlocked all previously locked features for all users (Focus Shield Allowlist mode, custom accent color picker, and premium typography options).
- Rewrote README.md with comprehensive open-source documentation, installation steps, and architecture overview.
- Updated tsconfig.json compiler options to include vitest and @testing-library/jest-dom type declarations.