feat: Protokoll tab as a core-style list table

The change summary is the wide primary column (key "title", so it cannot
be hidden) with the tool's human label below and row actions "Revision
ansehen" / "Objekt öffnen". Objects get human names ("Seite: Kontakt",
"Menü: …", "Einstellungen: Titel der Website"; deleted/trashed marked),
primed per page with one query each for posts, menus and users. Times are
relative within 24 h. Non-ok results show a badge and a marked row instead
of an Ergebnis column. Page size and columns via Screen Options; the tool
filter shows labels grouped by integration, dates have visible labels,
and an active filter offers "Filter zurücksetzen" (also in the empty state).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01At3V6SjwbMe6eMzVGW3Hs7

tests/Stubs/WpListTable.php

@@ -59,16 +59,59 @@ if (! class_exists('WP_List_Table')) {
             echo '</tr>';
         }
 
+        /** Like the real class: the per-page screen option of the current user, else the default. */
+        protected function get_items_per_page($option, $default_value = 20): int
+        {
+            $perPage = (int) get_user_option($option);
+
+            return $perPage < 1 ? $default_value : $perPage;
+        }
+
+        protected function get_default_primary_column_name()
+        {
+            $columns = $this->get_columns();
+
+            return (string) array_key_first($columns);
+        }
+
         /** @param array<string, mixed> $item */
         protected function single_row_columns($item): void
         {
+            $primary = $this->get_default_primary_column_name();
             foreach (array_keys($this->get_columns()) as $column_name) {
                 $method = 'column_' . $column_name;
                 $value = method_exists($this, $method) ? $this->{$method}($item) : $this->column_default($item, $column_name);
+                $value .= $this->handle_row_actions($item, $column_name, $primary);
                 printf('<td class="%s">%s</td>', $column_name, $value);
             }
         }
 
+        /** Like the real class: only the mobile toggle in the primary column. */
+        protected function handle_row_actions($item, $column_name, $primary)
+        {
+            return $column_name === $primary ? $this->toggleRow() : '';
+        }
+
+        /** @param array<string, string> $actions */
+        protected function row_actions($actions, $always_visible = false)
+        {
+            if ($actions === []) {
+                return '';
+            }
+
+            $links = [];
+            foreach ($actions as $action => $link) {
+                $links[] = "<span class='{$action}'>{$link}</span>";
+            }
+
+            return '<div class="row-actions">' . implode(' | ', $links) . '</div>' . $this->toggleRow();
+        }
+
+        private function toggleRow(): string
+        {
+            return '<button type="button" class="toggle-row"><span class="screen-reader-text">Show more details</span></button>';
+        }
+
         /** @param array<string, mixed> $item */
         protected function column_default($item, $column_name): string
         {