Epistemic Mapper

Extract a project's knowledge state from its documentation and its code, then sort every observation into one of four quadrants and write the result into a canonical EPISTEMIC-MAP.md. This is a handoff artifact: it exists because a prototype builder holds a mass of tacit knowledge that never got written down, and once a contract is signed and a team takes over, that knowledge either gets captured now or gets rediscovered the hard way, in production.