Dave 450aea5974 docs(plan): Phase 10 spec — Gantt redesign for /plan ... Redesign the planning page as a project-grouped Gantt: parent rows are cards (start_date..target_date), indented children are subtasks (gaining optional start_date and target_date). No new collections. cards gains an optional assignee text field. Replaces the Phase 5 Puzzle + Timeline tabs at /plan. Out of scope: drag-to-reschedule, subtask dates edited on the card page, connector lines, status/priority filters.		2026-09-21 15:43:40 +02:00
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superpowers	docs(plan): Phase 10 spec — Gantt redesign for /plan	2026-09-21 15:43:40 +02:00