vineethmakkena/trustwall ? reverse-engineered prompt

Build me a full web app called TrustWall for collecting and showing customer testimonials. I want people to be able to sign up, log in, and get a private dashboard where they can create testimonial collection spaces, copy share links, and see all the feedback that comes in. Customers should be able to open a public link and submit a testimonial without any confusion. The app should also have a public testimonial wall that displays selected feedback in a clean, polished layout, plus a simple embed code generator so businesses can add the wall to their own website.

Please make the dashboard feel complete, with pages for overview, spaces, testimonials, insights, settings, and embed generation. Use a modern, friendly design and make sure protected pages only work when the user is logged in. Store data properly in MongoDB, and connect the frontend and backend so the whole flow works end to end. If you need to check anything current, look up the latest docs online first.