anadijain1234/plantmind ? reverse-engineered prompt

Build me a web app called Ustaad for factory style maintenance memory, where workers can ask questions about machines in plain language, by text, voice, or a photo of a nameplate or alarm screen, and get back the best fix with the expert who found it, when it worked, and what failed before.

I want a simple home screen with a Memory ON and OFF toggle so people can see the difference between a normal chatbot and the memory powered version. Add pages for machines, repair history, parts stock, service due dates, and a manager dashboard that shows downtime saved, repeat failures, and a coverage score for each machine. Include roles for workers, seniors, and managers, with approval for new knowledge. It should support Hindi, Kannada, and English, and let people hear answers too. If possible, make it smart enough to auto fill a log when a sensor alert comes in, and let feedback like worked or did not work update future answers. Use the existing README as the guide and keep the app runnable even without a paid AI key.