Any signed-in user — owner or client_manager — can now edit
dates directly on the Gantt. Three interaction shapes:
- Drag the bar body to move it (both start and target shift
by the same number of days, snapped to whole UTC days).
- Drag the right edge to resize (target only).
- Double-click any card or subtask bar to open a modal with
Start + End date inputs, ESC to close, Enter to save.
Both card and subtask rows ship the same affordances. Cards
go through the existing rescheduleCardAction so the
activity-log row keeps recording who moved the date;
subtasks go through a new setSubtaskDatesAction (no audit
row — matches the existing subtask-toggle pattern).
Components touched:
- GanttBar gains canEdit / onMove / onResize / onEditRequest.
- GanttDateEditor is the inline two-input modal.
- ProjectSection forwards four callbacks (card move/resize,
subtask move/resize) plus onEditRequest.
- GanttPlanView holds the editor's open state and computes
one shared timeline range across sections.
- GanttClient wraps the view and bridges to the actions.
- /plan/page.tsx renders GanttClient.
Spec §6 amended to move drag from out-of-scope into the
delivered surface.
482/482 unit tests pass (was 471, +11 from bar-math).
Integration plan-gantt tests still pass.
Build clean.
Dave
cc2efd1f23