makecindy/cindy ? reverse-engineered prompt

Build me the open source Cindy client as a polished app that works on desktop and mobile, with a clean onboarding flow and a login screen that also lets users skip sign in and use local agents. It should feel like an AI assistant that can do real work on my computer, talk to different model providers, and keep the same workspace, memory, and settings as I move between tasks.

I want the app to support both the hosted Cindy service and personal setups like using my own API keys or local models, with the right account state shown clearly. Make the desktop version feel complete, and keep the mobile app in sync as a companion experience. It should be ready to run from the repo, with a good developer setup, clear docs, and sensible defaults.

If you need to check the latest docs or platform requirements, look them up online and follow the project guidance.