Warning/nag banners for PMs and BDs

[mezis]

• too many ideas in picked/approved (PMs) and designed/implemented (BDs). Warning at 3 ideas ("over capacity"), alert at 4+ ("just undoable or bad scoping").
• ideas for too long in a given state WRT size. yellow when over target, red when 2x over target; targets from 1 week (XS) to 1 month (L). distinguish design size (picked state) and development size (approved state).