chore(scaffold): activer TypeScript strict, alias @ et script typecheck

vite.config.ts

@@ -1,3 +1,4 @@
+import { fileURLToPath, URL } from 'node:url'
 import { defineConfig } from 'vite'
 import react from '@vitejs/plugin-react'
 import tailwindcss from '@tailwindcss/vite'
@@ -5,4 +6,9 @@ import tailwindcss from '@tailwindcss/vite'
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [react(), tailwindcss()],
+  resolve: {
+    alias: {
+      '@': fileURLToPath(new URL('./src', import.meta.url)),
+    },
+  },
 })