feat: Add GEMINI.md tip to UI

- Display a tip to create a GEMINI.md file if one doesn't exist.
- Pass config to Tips component so it can inspect the initial GEMINI.md
count.

packages/cli/src/ui/App.tsx

@@ -296,7 +296,7 @@ export const App = ({
           items={[
             <Box flexDirection="column" key="header">
               <Header />
-              <Tips />
+              <Tips config={config} />
             </Box>,
             ...history.map((h) => (
               <HistoryItemDisplay