v6.0.0-rc.9

Changelog:

• chore: normalize formatting in hooks (semicolons/spacing) and bump example iOS Podfile.lock deps (c9087e6)
• Merge pull request #494 from mCodex/refactor/appExample (ed1b003)
• docs: add error-handling section to README and introduce SECURITY.md (69876ac)
• fix(auth): treat authentication cancellations as soft-failures and map native cancel codes (4454883)
• chore: bump dev/example deps and normalize README version notation (0c6bd68)
• Update GitHub Sponsors username in FUNDING.yml (c495d01)
• example: overhaul App.tsx to use hooks-based playground UI (4d3540f)