Improvements to trial activation and onboarding experience

Trials

• Fixed cases where the free-trial option could be hidden before availability information finished loading.
• Improved trial eligibility handling when account or licensing data is temporarily unavailable.
• Added clearer routing between trial, licensed, expired-trial, and purchase-required states.
• Improved handling of expired trials to prevent unintended workspace access.

Onboarding

• Added a clear confirmation step after successfully starting a trial.
• Improved onboarding navigation so trial users complete setup before entering the workspace.
• Added further reliability checks and automated coverage for trial gating and onboarding.