One row per issue (swim lane). Child Tasks are indented under their parent Epic in label column. Order: PARENT_ORDER + CHILDREN. Child-task story points load from gantt-jira-cache.json (run node sync-gantt-jira-sp.mjs with Jira credentials); bar length uses SP → work days = max(1, ceil(SP÷2)), or defaultSp if Jira has no SP (Sat/Sun are not work days). Parent epics keep rollup SP out of bars. Blocks = finish-to-start on the next work day; Relates dashed. Open via a local HTTP server so the cache file can load. Project start is HTT-488 startDate. Today = vertical marker. Timeline zoom: slider or Ctrl+wheel / pinch. Sprints (shaded columns + header S1, S2, …): 14 calendar days each, first sprint starts 2026-04-27.