Web UI: linked views link to their zones; pick views to link one per row, none ticked

The "linked with" badge links each view's zone (the API's zones carry links: id and view). The Link dialog lists the views one per row, with record count and any link they already have; nothing is ticked, Link waits for a choice and names every zone that will join.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/web/static/assets/style.css

@@ -513,3 +513,8 @@ td textarea.code { min-width: min(72ch, 50vw); }
 /* Certificates: the "check the names" result under the ACME fields. */
 .check-names { margin: 6px 0 14px; }
 .check-names .table-wrap { margin-top: 8px; }
+
+/* A list to pick rows from (linking zones): the whole row toggles. */
+table.pick-list tr.pick { cursor: pointer; }
+table.pick-list tr.pick td:first-child { width: 2em; }
+table.pick-list tr.pick.selected { background: var(--accent-soft); }