fix(tui): Change flexDirection to column for tips layout

packages/opencode/src/cli/cmd/tui/component/tips.tsx

@@ -36,7 +36,7 @@ export function Tips() {
   const parts = parse(TIPS[Math.floor(Math.random() * TIPS.length)])
 
   return (
-    <box flexDirection="row" maxWidth="100%">
+    <box flexDirection="column" maxWidth="100%">
       <text flexShrink={0} style={{ fg: theme.warning }}>
         ● Tip{" "}
       </text>

packages/opencode/src/cli/cmd/tui/routes/home.tsx

@@ -105,7 +105,7 @@ export function Home() {
             hint={Hint}
           />
         </box>
-        <box width="100%" paddingTop={2}>
+        <box width="100%" paddingTop={2} flexDirection="column">
           <Show when={showTips()}>
             <Tips />
           </Show>