AgriciDaniel/linkedin-content-creator ? reverse-engineered prompt

Build me a web app that helps me create LinkedIn content with AI. I want to be able to generate professional text posts, image posts, and carousel or document posts from a simple prompt, and have the app do some smart research first so the content feels relevant and useful.

Please include a content calendar so I can plan and schedule posts, plus a way to generate a bunch of variations or multiple posts at once. I also want settings for my brand voice, target audience, and content preferences, and a dark mode and light mode option.

If possible, let me connect my LinkedIn account and post directly through OAuth. Use Gemini for the AI part, and make it easy to add API keys in a settings area. If you need to check current docs or setup details, look them up online as you go.