feat: Site audit and Crawls screens with their MCP tools

- golem15.seo.issues (Site audit): current issues errors first, labels,
  summary and fix columns, filters, P7 issue_details, Check this address
  again, Ignore, Stop ignoring, bulk Ignore, ignored rows badged
- golem15.seo.crawls (Crawls): newest first, P6 crawl_summary with one
  status callout, staging and rendered-comparison lines, stats strip and
  per-kind table; Cancel; a running crawl refuses delete
- Start crawl toolbar action on both, refusing already_running and
  no_site_url; navigation Site audit (gauge) and Crawls (globe)
- routes and MCP tools start/cancel/list/get/delete crawls, list_issues
  with filters (open by default), recheck_url, ignore and unignore
- AdminOperations maps both controllers; toolbar actions get their own
  operation kind
- TestCrawlAdmin, TestCrawlTools, TestIssueKindLabels

admin_navigation.go

@@ -45,6 +45,20 @@ func (*Plugin) Navigation() []pact.NavigationItem {
 				Permissions: []string{controllers.PermissionManage},
 				Controller:  controllers.PagesControllerID,
 			},
+			{
+				Code:        "audit",
+				Label:       "golem15.seo::lang.nav.audit",
+				Icon:        "gauge",
+				Permissions: []string{controllers.PermissionManage},
+				Controller:  controllers.IssuesControllerID,
+			},
+			{
+				Code:        "crawls",
+				Label:       "golem15.seo::lang.nav.crawls",
+				Icon:        "globe",
+				Permissions: []string{controllers.PermissionManage},
+				Controller:  controllers.CrawlsControllerID,
+			},
 			{
 				Code:        "robots",
 				Label:       "golem15.seo::lang.nav.robots",