Guides, Creator Kit, and a 14-day trial

I replaced the founding plan with a 14-day trial for everyone, removed the Launching Soon badge, and added an FAQ to the landing page. Creators can now offer an RSS feed of their verification records from the status page, and account deletion became a request with a 30-day cooling-off period. I added avatar upload with cropping, emails on subscription events, banners that get more urgent as a cancellation date approaches, and recommended OBS dimensions in Streaming settings. I published guides for stream overlay setup, best practices, and how to verify, plus an in-app Creator Kit.