feat(tanstack): initialize TanStack project with routing, API, and error handling components

tanstack/app.config.ts

@@ -0,0 +1,15 @@
+import { defineConfig } from '@tanstack/react-start/config'
+import tsConfigPaths from 'vite-tsconfig-paths'
+
+export default defineConfig({
+  tsr: {
+    appDirectory: 'src',
+  },
+  vite: {
+    plugins: [
+      tsConfigPaths({
+        projects: ['./tsconfig.json'],
+      }),
+    ],
+  },
+})