Implement a spectator mode with anon viewing

[Marvy247]

Allow anyone to spectate a table in real time without connecting a wallet. Spectators see community cards and actions but not hole cards. Add a spectator count indicator on tables.

[Henrichy]

@Henrichy has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi! I'd like to work on this issue.
I've contributed to Rust, TypeScript, backend, frontend, and smart contract projects, with a focus on delivering focused, well-tested changes. I'll keep the implementation within the requested scope, preserve existing behavior unless the issue requires otherwise, include the necessary tests and documentation, and submit a PR that's straightforward to review.
Portfolio: https://portfolio-sandy-alpha-29.vercel.app • ETA: ~2–4 hours.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Henrichy to this issue.

[divinemike019]

@divinemike019 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi! I'd like to contribute to this issue.

I’ll review the existing code and project patterns, reproduce the current behavior, and implement a clean solution focused on the issue.

I’ll also add or update the necessary tests, make sure existing functionality is not affected, and run the relevant tests, lint, build, and CI checks before submitting the PR.

I’m ready to get started and will keep the changes focused and maintainable.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @divinemike019 to this issue.

[Mormentz]

@Mormentz has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi, I can implement anonymous real-time spectator mode without requiring wallet connection, showing community cards and player actions while keeping hole cards hidden. I’ll also add live spectator counts and ensure the experience is responsive and reliable.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Mormentz to this issue.

[Henrichy]

@Marvy247 please assign this to me. Im low on points please. If this would be my last issue before this wave ends. Id appreciate. Would deliver in less than 2hours