Add Google AdSense integration

Fix gradient text clipping issue with descenders

Remove root railway.json (Next.js has its own config)

Clean up: Remove unused backend and Vite frontend, keep Next.js only

Configure Next.js to run on port 4173 for Railway

Fix TypeScript errors by converting UI components to .tsx with proper types

Add missing aiHelpers utility file for Next.js build

Add Next.js version of frontend for easier Railway deployment

Remove debug startup script and run Caddy directly

Change Caddy port to 4173 to match Railway configuration

Explicitly bind Caddy to 0.0.0.0:8080 for IPv4 connections

Hardcode port 8080 in Caddyfile to ensure proper binding

Add network diagnostics to verify Caddy is listening on correct port

Simplify Caddyfile to fix syntax issues

Add startup script to debug PORT variable and file locations