Fixed

• Summary page: project name heading is now editable inline — the element ID collision with the nav span was causing contentEditable to bind to the wrong element

Added

• Milestones inferred from tasks: when a task is saved with a milestone field, an empty milestone file is auto-created if one does not exist yet; GET /api/milestones also scans existing tasks on first load and creates any missing files, so older projects are migrated automatically