study8677/repobrain ? reverse-engineered prompt

Build RepoBrain in this project so I can ask questions about the codebase and get reliable answers with file paths and line numbers.

Set it up the way this repo expects, make sure the install and setup flow works, and add whatever is needed so it can build and refresh the project knowledge base from the source code. I want it to work cleanly in the supported AI tools, and I want the basic slash commands or equivalent commands to be ready to use.

If anything depends on current docs or setup details, look them up online and follow the latest instructions. After setting it up, make sure there’s a simple way to ask things like how auth works or where a feature lives, and that the answers stay grounded in the actual code.