refactor: migrate to pnpm monorepo with Payload CMS backend and Astro frontend to support scalable website development and AI-assisted workflows

apps/frontend/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "astro/tsconfigs/strict",
+  "compilerOptions": {
+    "baseUrl": ".",
+    "paths": {
+      "@shared/*": ["../packages/shared/src/*"]
+    }
+  }
+}