workspace_loading

Katz 0.108

Index sync progress belongs in workspace_pane; do not treat " index not ready " as a hard global error during cold start.
Host posts index health on view resolve and on `ready`; soft-waits when the index is not ready instead of erroring the whole bar.
Waiting for index: use workspace_pane sync progress affordance.
When the status line *is* in error, show it prominently per error_status_bar.

Interactive page: workspace_loading