feat: change log tab with filters, revision links and clear button

ChangeLog gains query()/abilities()/clear() (filters: ability, user,
result, date range - all optional and additive). LogTab/LogListTable
render the "Protokoll" admin tab: WP_List_Table with pagination, links
to the post/attachment/nav_menu edit screen by object_type, a revision
link shown only when the user may edit the revision's parent post, and
a nonce+manage_options-gated "Protokoll leeren" with a JS confirmation
and highlighted 'partial' rows.

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

src/Plugin.php

@@ -12,6 +12,7 @@ use LIT\MCP\Admin\ConnectionRepository;
 use LIT\MCP\Admin\ConnectionStatus;
 use LIT\MCP\Admin\ConnectionTab;
 use LIT\MCP\Admin\LimitsTab;
+use LIT\MCP\Admin\LogTab;
 use LIT\MCP\Admin\SettingsPage;
 use LIT\MCP\Admin\SiteHealth;
 use LIT\MCP\Admin\ToolsTab;
@@ -85,6 +86,7 @@ final class Plugin
             new ConnectionTab($status),
             new AccessTab($access, new ConnectionRepository()),
             new ToolsTab($registry, $policy),
+            new LogTab($changeLog, $limits),
             new LimitsTab(),
         ]);
         if (is_admin()) {