generated from mathias/template-go-web
TDD: Job.Seconds() + StageSeconds() derive real CI/CD dwell time from the latest run's per-job created_at/updated_at (last job in pipeline order = deploy/stage 07, everything before it = CI/stage 06). Frontend: weightedSpineDist() redistributes the pixel-time-budget the 06/07 segments already had, splitting it by real CI:CD duration ratio instead of raw pixel width. Falls back to the exact prior constant-speed sweep when no run data is available (weights default to segment pixel length) or when a job is skipped (0 duration) — no behavior change for stages 00-05/08, which still have no live timing source (same gap as #5's ledger item). Verified: real duration values flow through /api/atlas.json (ci_duration_s: 18 observed against a real run), full page screenshot confirms no visual regression.