Fix Vite React Build Issue

I have a small React 17 + TypeScript project scaffolded with Vite. The dev server starts without a hitch, yet the page stays blank and the browser console reports a “Module not found” error. I’d like you to jump into the codebase right away, trace the source of the import failure, and get the app rendering normally on localhost.

Once the problem is solved, please walk me through the root cause—what went wrong, which file or config triggered it, and how the fix addresses it—so I can avoid it next time.

Deliverables
• A working Vite dev build that displays the app in the browser
• A concise summary of the diagnosis and steps taken to resolve the Module-not-found error

I’m ready to share the repo as soon as you’re available; the sooner we can wrap this up, the better.