feat: Implement scroll-to-top on header logo click and ignore Vite build artifacts in .gitignore.

Author: arifszn

.gitignore

@@ -9,6 +9,7 @@ lerna-debug.log*
 
 node_modules
 dist
+.vite/
 dist-ssr
 *.local
 

src/App.tsx

@@ -42,7 +42,10 @@ function App() {
       {/* Header */}
       <header className="border-b bg-background/80 backdrop-blur-sm sticky top-0 z-50">
         <div className="container mx-auto px-4 py-4 flex items-center justify-between">
-          <div className="flex items-center gap-2">
+          <div 
+            className="flex items-center gap-2 cursor-pointer" 
+            onClick={() => window.scrollTo({ top: 0, behavior: "smooth" })}
+          >
             <img src={logoSvg} alt="shepai logo" className="w-8 h-8" />
             <span className="font-bold text-xl">shepai</span>
           </div>