{"service":"iR³ Series Node","version":"1.0.0","description":"Step data series storage (Post 081, 089)","seriesCount":4,"dataDir":"/var/lib/ir3-w/series","port":"6414","endpoints":{"GET /series":"List all series","GET /series/:name":"Get series metadata","POST /series/:name/append":"Append data (create new step)","GET /series/:name/step/:step":"Get specific step","GET /series/:name/range?from=N&to=M":"Get step range","GET /series/:name/latest?count=N":"Get latest N steps","DELETE /series/:name":"Delete series"}}