Build a Mermaid Gantt chart from a task list. Format: name, section, start (date or 'after task'), duration.
Start: 2026-05-01 or after TaskName. Duration: 14d, 3w.
gantt
title Project Roadmap
dateFormat YYYY-MM-DD
section Discovery
Research :Research, 2026-05-01, 14d
section Design
Design :Design, after Research, 21d
section Build
Dev sprint 1 :Dev_sprint_1, after Design, 30d
QA :QA, after Dev sprint 1, 14d
section Launch
Launch :Launch, after QA, 7d