Spaced Repetition for Someday Tasks

Implement a spaced repetition system for reviewing "Someday" tasks, similar to Anki-style memory retention. Tasks would automatically reschedule at exponentially increasing intervals (e.g., 1, 2, 4, 8, 16, 32 days, etc.) whenever they are reviewed or edited. This helps prevent important but non-urgent tasks from falling through the cracks while reducing the cognitive load of manually rescheduling or endlessly postponing tasks. Over time, only a few items need reviewing at once, making backlog management more efficient.