plan-prioritylisted

# Priority Ordering Always build in this order: 1. **Core function** — The one thing the product MUST do 2. **Data flow** — Make sure data goes in and comes out correctly 3. **User interface** — Make it usable (not beautiful, just usable) 4. **Edge cases** — Handle errors and weird inputs 5. **Polish** — Make it look good, add nice touches Never start with UI. Never start with styling. Get the engine running first, then put the paint on. Tell the user: "先把核心功能做出来能跑，然后再美化。"