A custom settings control under the Claude category: a dropdown of the
registered accounts plus Default. Picking one binds (or unbinds) this
workspace via the AccountRegistry and publishes set/unset on
accountActionChannel — the same channel the CLI verbs use, so the session
respawns onto the account (T-480) and the IDE lock re-syncs (T-479). It reads
live off the shared settings notifier, so a CLI `account set` updates the
dropdown too. Empty states cover no-workspace and no-accounts, each pointing at
the CLI.
Registry writes set the in-memory binding synchronously then flush, so the
control publishes the bus event before the disk write completes.
Part 2 (the global Accounts registry CRUD list + sign-in probe) is still open
on T-482. en/nl strings added; widget test covers the states + bind/unbind.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.8
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