Refactor project structure and update configurations

- Update .gitignore to include additional build artifacts, logs, and editor files
- Modify package.json scripts for improved development workflow and remove unused scripts
- Change Vite output directory to 'dist' for consistency
- Simplify App.jsx by removing unused state and functions, enhancing readability
- Adjust server.js to serve static files from the new 'dist' directory

.gitignore

@@ -1,6 +1,20 @@
-node_modules
-.env
+# Dependencies
+node_modules/
 package-lock.json
-.cursor
-*.excalidraw
-public/dist/assets/
+
+# Build artifacts
+dist/
+public/dist/
+
+# Environment files
+.env
+
+# Logs
+*.log
+
+# Editor artifacts
+.cursor/
+.claude/
+
+# Development artifacts
+*.excalidraw