Security: Update dependencies for CVE fixes and infrastructure improvements

[chriswritescode-dev]

Summary

Security updates for dependency CVE fixes with infrastructure improvements.

Changes

Security Updates

• Update hono from ^4.10.1 to ^4.11.7 - includes security patches
• Update react-router-dom from ^7.9.4 to ^7.13.0 - includes security patches
• All backend and frontend tests passing with new versions

Infrastructure

• Updated docker-upgrade.sh to use --no-cache flag for reliable clean rebuilds
• Ensures Docker images built with updated dependencies across all environments

Notes

• Attempted SSE refactor to use Hono's built-in streamSSE for better maintainability
• Reverted to manual streaming implementation due to incompatibility issues observed in production
• Manual SSE implementation remains stable and production-tested

Testing

• Backend: All tests passing (303 passed, 1 skipped)
• Frontend: Typecheck and lint passing
• Docker: Build successful with updated dependencies

Checklist

• Code follows project style guidelines
• Tests pass locally
• No new linting errors introduced
• Dependencies updated for security patches