feat(e2e): Introduce multiple-apps-same-domain e2e tests

[nikosdouvlis]

Description

Introduce integration tests for the multiple-apps-same-domain feature. For more details about the flows covered by these tests, please refer to the detailed comments in the integration/tests/sessions tests and the README in integration/certs

Checklist

• [ ] npm test runs as expected.
• [ ] npm run 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:

[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: 35ff2cfe8b32ea6ad5f5abba95612e7ec039c97d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 16 packages

| Name | Type | | ----------------------- | ----- | | @clerk/clerk-js | Minor | | @clerk/backend | Minor | | @clerk/shared | Minor | | @clerk/astro | Patch | | @clerk/chrome-extension | Patch | | @clerk/clerk-expo | Patch | | @clerk/express | Patch | | @clerk/fastify | Patch | | @clerk/nextjs | Patch | | @clerk/remix | Patch | | @clerk/clerk-sdk-node | Patch | | @clerk/tanstack-start | Patch | | @clerk/testing | Patch | | @clerk/elements | Patch | | @clerk/clerk-react | Patch | | @clerk/ui | Patch |

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