{"name":"BTO Backend","version":"1.0.0","status":"running","endpoints":{"auth":{"register":"POST /api/auth/register","login":"POST /api/auth/login","firebase":"POST /api/auth/firebase"},"users":{"me":"GET /api/users/me","update":"PUT /api/users/me","location":"PUT /api/users/me/location","nearby":"GET /api/users/nearby?lat=&lng=&radius=&limit=&offset=","profile":"GET /api/users/:id","block":"POST /api/users/:id/block"},"messages":{"conversations":"GET /api/messages/conversations","messages":"GET /api/messages/:peerId?before=&limit=","send":"POST /api/messages"},"ws":"ws://host:8080 (chat + p2p signaling)"}}