Split the main-window mega bag into domain-scoped AppView slices so Vault,
terminal, chrome, dialogs, and mounts only re-render when their slice identity
changes. Drive tab titles/coding-CLI icons through sessionPresentationStore
(store-only live updates + orphan map overlay), retain presentation-stable
sessions for domain memos, stabilize AI panel context Maps with structural
equal/retain, and keep shell history on shellHistoryStore so Vault host lists
ignore history-only churn.
bincxz