Render a named PhoenixLiveGantt fixture and pretty-print its geometry to stdout. Use this to debug "what does this chart actually look like?" without running the dev server.
mix phoenix_live_gantt.dump # list fixtures
mix phoenix_live_gantt.dump simple
mix phoenix_live_gantt.dump fanout
mix phoenix_live_gantt.dump fanout --stagger 4
mix phoenix_live_gantt.dump fanout --zoom dayOptions: --zoom day|week|month (default: week) --stagger N (default: 0) outgoing+incoming bus stagger --expanded a,b,c comma-separated sub-project ids to render in
the EXPANDED state (default: all collapsed)--expanded * expand every sub-project --raw also print the raw HTML below the structured dump