feat(04-03): install react-pdf and configure Next.js transpilePackages

- npm install react-pdf (v9+ pulls in pdfjs-dist automatically)
- Add transpilePackages: ['react-pdf', 'pdfjs-dist'] to next.config.ts
- Build verified passing after config change

teressa-copeland-homes/package.json

@@ -24,6 +24,7 @@
     "postgres": "^3.4.8",
     "react": "19.2.4",
     "react-dom": "19.2.4",
+    "react-pdf": "^10.4.1",
     "zod": "^4.3.6"
   },
   "devDependencies": {