Tables with a header row can be sorted by clicking a column header

Listing tables on company, taxonomy and generic list pages get column headers.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ

layouts/_partials/page-list.html

@@ -1,14 +1,22 @@
-{{/* table of pages: machines get company/year/type columns; companies are a plain list */}}
-{{ if eq (index . 0).Section "companies" }}
+{{/* table of pages: machines get company/year/type columns; companies are a plain list.
+     Takes the pages, or (dict "pages" … "head" true) to add the column headers (sortable). */}}
+{{ $pages := . }}{{ $head := false }}
+{{ if reflect.IsMap . }}{{ $pages = .pages }}{{ $head = .head }}{{ end }}
+{{ if eq (index $pages 0).Section "companies" }}
 <ul class="columns">
-  {{ range . }}
+  {{ range $pages }}
   <li><a href="{{ .RelPermalink }}">{{ .Title }}</a> <small>({{ len .Params.machines }})</small></li>
   {{ end }}
 </ul>
 {{ else }}
 <table class="list">
+  {{ if $head }}
+  <thead>
+    <tr><th>Name</th><th>Year</th><th>{{ if eq (index $pages 0).Section "software" }}Tags{{ else }}Type{{ end }}</th><th>Origin</th></tr>
+  </thead>
+  {{ end }}
   <tbody>
-    {{ range . }}
+    {{ range $pages }}
     <tr>
       <td><a href="{{ .RelPermalink }}">{{ .Title }}</a></td>
       <td>{{ partial "terms.html" (dict "page" . "taxonomy" "years") }}</td>