samruddhichougule570/interviewIQ ? reverse-engineered prompt

Build me an AI powered mock interview app where users can sign in with Google, upload a resume if they want, and then practice a voice interview with an AI interviewer. The app should ask about their role and experience, generate a short set of questions that start easy and get harder, and let the user answer by voice or by typing. Each question should have a timer and automatically move on when time is up. After the interview, show a clear score report with feedback on confidence, communication, and correctness, plus charts and a way to download the report as a PDF.

I also want a history page for past interviews and a simple credit system, where new users get some free credits and can buy more with Razorpay when they run low. Please make the whole thing feel polished and modern, and use the best current docs online if you need to.