GH #112: time on tasks, and the two ways a task can open Tasks.md gains the scheduled slot and the time entries in the detail panel section, the panel-or-large-window choice, the twelve-item right-click menu, the new Settings > Time tab, task_time_entries in the key tables, and a Related pages block. New Time-On-Tasks-Developer-Guide.md covers why this is TWO features rather than one (a scheduled slot is a naive wall clock, a time entry is an instant -- the distinction #116 turned on), the one-level-deep roll-up and why, the tasks/subtasks/both/off setting living in exactly one function, the single panel with two shapes, and the five traps this walked into: a const is not a window property, an entity inside a translated string gets escaped, a <label> is styled for field names, toISOString() on a bare date, and never identifying a status by its name.