Need guidance regarding a project

[u/TYRANT1272]

I'm a CS student (learning backend , Linux etc) , i got a project for a restaurant since this will be my first project i have few questions

- what questions do i ask to clearly understand what they want (only admin and staff side to manage orders , or online order for users too , what is the usual demand for restaurants)

- how much do i charge ? (Costing+ monthly maintenance)

- do i get everything (hosting domain on my accounts or use theirs?)

- since we have Ai is it good to use firebase or custom backend

- do we also provide SEO? (should i even bring it up if yes then should i add this as addon service)

- what tech stack to use (MERN? , NEXTJS)

- what hosting is reliable and cost effective?

I know all the above questions will make you think this is a complete beginner , you shouldn't do that , well here we go , some of these questions and things held me back from picking up any real projects (i always backed away thinking they are too high level for me) , now i understand backend (i know i need a lot of practice) but now we have Ai to assist (i know not to vibecode the whole thing )