feat(clerk-js): Use stricter organization slug validation

[jacekradko]

Description

Related: https://github.com/clerk/clerk_go/pull/10933

Checklist

• pnpm test runs as expected.
• pnpm build runs as expected.
• (If applicable) JSDoc comments have been added or updated for any package exports
• (If applicable) Documentation has been updated

Type of change

• 🐛 Bug fix
• 🌟 New feature
• 🔨 Breaking change
• 📖 Refactoring / dependency upgrade / documentation
• other:

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Latest commit: 0aa64b3

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Name	Status	Preview	Comments	Updated (UTC)
clerk-js-sandbox	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 30, 2025 2:41am

[clerk-cookie]

Hello 👋

We currently close PRs after 60 days of inactivity. It's been 50 days since the last update here. If we missed this PR, please reply here. Otherwise, we'll close this PR in 10 days.

Thanks for being a part of the Clerk community! 🙏

[clerk-cookie]

Hello 👋

We currently close PRs after 60 days of inactivity. It's been 50 days since the last update here. If we missed this PR, please reply here. Otherwise, we'll close this PR in 10 days.

Thanks for being a part of the Clerk community! 🙏

[clerk-cookie]

Hello 👋

We currently close PRs after 60 days of inactivity. It's been 50 days since the last update here. If we missed this PR, please reply here. Otherwise, we'll close this PR in 10 days.

Thanks for being a part of the Clerk community! 🙏