Port the Data Library Browse dialog to Vue and Pinia

The dialog is now DataLibraryDialog.vue (with DataLibraryCard.vue for each
entry), placed with the Browse button by DataLibraryBrowse.vue in
LayerPanelsView and teleported to the body. It renders what the
gev-data-library store holds and sends clicks and typing to the owner.

src/ui/libraryBrowser.js is now the framework-free owner: it presents the
open state, filters, the rows they show, the stat summary and Remove all
through `publish`, and its controls answer the view. Its text helpers are
what the view renders with t(), so every label follows the locale without
rebuilding anything. Only showModal/close and focus moves stay imperative;
focus returns to Browse also when the browser closes the dialog on Escape
itself.

Component tests mount the view over the real owner (open, filters, Add to
Remove keeping focus, Zoom, Remove all, a language switch, clean view).

docs/CURRENT-STATE.md

@@ -600,8 +600,12 @@ partition index whose footers keep failing after two retries is
 `complete: false`: neither the server nor the browser keeps it as whole, a
 complete earlier index is served instead, and it is rebuilt after five
 minutes. A view that leaves partitions touching it unread is PARTIAL. Listing
-pages and footer reads are size-capped and ranges are validated. The Browse
-dialog rebuilds on a language switch, keeping its filters.
+pages and footer reads are size-capped and ranges are validated. The Browse dialog is a Vue view (src/ui/views/panels/DataLibraryDialog.vue
+and DataLibraryCard.vue, teleported to the body from LayerPanelsView) over the
+`gev-data-library` Pinia store; src/ui/libraryBrowser.js is its framework-free
+owner (open state, filters, the rows they show, Remove all) and the text
+helpers the view renders, so every label follows the locale. Only the modal
+open/close and focus moves are imperative.
 
 ## Utilities panel — October 29, 2026