fix(tags): header checkbox selects all loaded rows, not just the page

With a 7-row page size, the header "select all" (toggleAllPageRowsSelected)
only selected the visible 7 — so it never reached "all loaded", the condition
that reveals the "Select all N matching" escalation. It now selects every loaded
row (toggleAllRowsSelected):
- when everything matching is already loaded, that IS the whole set (tag via ids);
- when more match than are loaded (e.g. 250 loaded of 10,000), the escalation
  appears and routes through mode:"filter" — the server resolves and tags the
  entire matching set (getFilteredPropertyIds, chunked), so memory is never the
  ceiling and no huge id list is sent from the client.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/app/portfolio/[slug]/components/propertyTableColumns.tsx

@@ -215,17 +215,20 @@ const coreColumns: ColumnDef<PropertyWithRelations>[] = [
     id: "select",
     enableSorting: false,
     enableHiding: false,
+    // Selects ALL loaded rows (not just the paginated page), so on a small page
+    // size it still covers everything in view. When more properties match than
+    // are loaded, the TagActionBar offers "Select all N matching" on top of this.
     header: ({ table }) => (
       <Checkbox
-        aria-label="Select all on this page"
+        aria-label="Select all loaded rows"
         checked={
-          table.getIsAllPageRowsSelected()
+          table.getIsAllRowsSelected()
             ? true
-            : table.getIsSomePageRowsSelected()
+            : table.getIsSomeRowsSelected()
               ? "indeterminate"
               : false
         }
-        onCheckedChange={(v) => table.toggleAllPageRowsSelected(!!v)}
+        onCheckedChange={(v) => table.toggleAllRowsSelected(!!v)}
       />
     ),
     cell: ({ row }) => (