feat: update backend OCR parser, web app, mobile app camera/preview UI, tests, and documentation with sample images

backend/pfm-web-app/next.config.ts

@@ -1,7 +1,21 @@
 import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
-  allowedDevOrigins: ["ocr-demo-7871.demoin.id", "*.demoin.id"],
+  // Allow dev requests from any host — needed for tunnel access (ngrok, cloudflare, etc.)
+  // and direct LAN/WiFi IP access from Android devices.
+  allowedDevOrigins: [
+    "*.trycloudflare.com",
+    "*.ngrok.io",
+    "*.ngrok-free.app",
+    "*.ngrok.app",
+    "*.loca.lt",
+    "*.serveo.net",
+    "*.demoin.id",
+    // Common LAN IP ranges (WiFi / hotspot)
+    "192.168.*",
+    "10.*",
+    "172.*",
+  ],
   serverExternalPackages: ["pg"]
 };