Demo of building forms with the Next.js App Router and React 19 to answer questions like:
1. Why does the form clear out my input values?
2. How do I pass data from my server action to the client?
3. How do I handle client / server validation?
4. How do I display inline errors next to inputs?
Code: https://v0.dev/chat/CiFWYqPHKvT?b=b_0v5ES6AiBeq