feat(api): support organization-scoped sign-in tickets

[swolfand]

Summary

• route Auth.signInWithTicket through the canonical typed ticket strategy
• document that backend-issued organization-scoped tickets activate that organization and synchronize Clerk.sessionFlow
• add regression coverage for ticket request parameters and active-organization client synchronization

Related work

• clerk/clerk_go#20464
• clerk/clerk#2977
• clerk/clerk-ios#523

Testing

• ./gradlew :source:api:test
• ./gradlew spotlessCheck
• ./gradlew :source:api:detekt
• ./gradlew :source:api:lint
• ./gradlew :samples:quickstart:assembleDebug

Notes

The repository-wide detekt task currently reports six pre-existing source/ui complexity violations. The changed source/api module passes detekt.

Linear: MOBILE-591

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[swolfand]

Closing after re-evaluating the integration boundary. org_id is carried in the backend-issued ticket, so the native SDK request remains strategy=ticket plus the unchanged ticket value. Existing client synchronization already handles last_active_organization_id.

The backend end-to-end coverage in clerk/clerk_go#20464 verifies Organization activation, and the native usage is documented in clerk/clerk#2977. No native runtime change is required.