Install and update pinned whatever the marketplace head was when the
click landed, so a background refresh between review and click could
pin content nobody saw (including a hook's shell commands).
install_marketplace_item and update_marketplace_item now take
expected_commit and refuse with "changed since you reviewed this item —
review it again" unless it is still the head. The UI passes the head the
selected item was read at (Browse), the head frozen with a pending hook
confirm (whose commands are frozen too), and the head of the accepted
diff (Installed).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Implements Task 13: BrowsePane (marketplace list, kind/search filters, item
detail), InstallControls (global/per-project install, opt-out, hook confirm
gate), HookConfirmModal, AddMarketplaceModal, and ItemDetail. Also applies
pre-flight ruling F6: a per-marketplace Remove button with a confirm dialog
(mp.remove) warning that surviving installs become "Source removed" and can
be dropped via Forget on the Installed tab, plus an inline account
reassignment select (updateMarketplace + reloadState).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
shadowdaoandClaude Opus 5.5