dcbe5d7bdc
Fold Daniel's decisions into CONTEXT.md, PLAN.md, and the product notes: - Fork 1 (persistence): pool folds into the `banks` blob; legacy `bank_index` key retired after a one-way lossless migration. - Fork 2 (delete): delete drops member index entries; add an `evacuate` verb (B1 pure op + B3 action) returning members to the pool. Design the orphaned-until-prune window and confirm-on-non-empty-delete guardrail. - Fork 3 (move): move is the default gesture, copy the deliberate secondary. - Fork 4 (active bank): active-bank and shown-tab stay distinct; the active-bank indicator must be visually unmistakable. Fork 5 (tab rendering + move affordance) remains open with an options analysis and pending recommendations. Additive; M0-M11 and Phase D untouched.