Add cPanel chrome (sidebar/topbar) to plugin pages

Use $cpanel->header() and $cpanel->footer() from LiveAPI to wrap
plugin content in cPanel's standard layout with sidebar navigation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

cpanel/gniza/index.live.cgi

@@ -19,16 +19,19 @@ use Cpanel::AdminBin::Call ();
 use GnizaCPanel::UI;
 
 my $cpanel = Cpanel::LiveAPI->new();
+print "Content-Type: text/html\r\n\r\n";
+print $cpanel->header('GNIZA Backups');
 
 # Get allowed remotes via AdminBin
 my $remotes_raw = eval { Cpanel::AdminBin::Call::call('Gniza', 'Restore', 'LIST_ALLOWED_REMOTES') } // '';
 my @remotes = grep { $_ ne '' } split /\n/, $remotes_raw;
 
-print GnizaCPanel::UI::page_header('gniza Restore');
+print GnizaCPanel::UI::page_header('GNIZA Backups');
 
 if (!@remotes) {
     print qq{<div class="alert alert-info mb-4">No backup remotes are available for restore. Please contact your server administrator.</div>\n};
     print GnizaCPanel::UI::page_footer();
+    print $cpanel->footer();
     $cpanel->end();
     exit;
 }
@@ -105,4 +108,5 @@ for my $cat (@categories) {
 print qq{</div>\n};
 
 print GnizaCPanel::UI::page_footer();
+print $cpanel->footer();
 $cpanel->end();

cpanel/gniza/restore.live.cgi

@@ -170,6 +170,7 @@ sub handle_step1 {
     }
 
     print "Content-Type: text/html\r\n\r\n";
+    print $cpanel->header('GNIZA Backups');
     print GnizaCPanel::UI::page_header('Restore: ' . ($TYPE_LABELS{$type} // $type));
     print GnizaCPanel::UI::render_flash();
 
@@ -181,6 +182,7 @@ sub handle_step1 {
         print qq{<div class="alert alert-info mb-4">No backup remotes are available. Please contact your server administrator.</div>\n};
         print qq{<a href="index.live.cgi" class="btn btn-info btn-sm">Back</a>\n};
         print GnizaCPanel::UI::page_footer();
+        print $cpanel->footer();
         return;
     }
 
@@ -225,6 +227,7 @@ sub handle_step1 {
     _print_step1_js($esc_type, $next_step);
 
     print GnizaCPanel::UI::page_footer();
+    print $cpanel->footer();
 }
 
 sub _print_step1_js {
@@ -325,6 +328,7 @@ sub handle_step2 {
     }
 
     print "Content-Type: text/html\r\n\r\n";
+    print $cpanel->header('GNIZA Backups');
     print GnizaCPanel::UI::page_header('Restore: ' . ($TYPE_LABELS{$type} // $type));
     print GnizaCPanel::UI::render_flash();
 
@@ -371,6 +375,7 @@ sub handle_step2 {
     _print_step2_js($esc_type, $esc_remote, $esc_timestamp);
 
     print GnizaCPanel::UI::page_footer();
+    print $cpanel->footer();
 }
 
 sub _render_file_picker {
@@ -699,6 +704,7 @@ sub handle_step3 {
     }
 
     print "Content-Type: text/html\r\n\r\n";
+    print $cpanel->header('GNIZA Backups');
     print GnizaCPanel::UI::page_header('Restore: Confirm');
     print GnizaCPanel::UI::render_flash();
 
@@ -744,6 +750,7 @@ sub handle_step3 {
     print qq{</form>\n};
 
     print GnizaCPanel::UI::page_footer();
+    print $cpanel->footer();
 }
 
 # ── Step 4: Execute ───────────────────────────────────────────
@@ -765,6 +772,7 @@ sub handle_step4 {
     $type = 'account' unless exists $TYPE_LABELS{$type};
 
     print "Content-Type: text/html\r\n\r\n";
+    print $cpanel->header('GNIZA Backups');
     print GnizaCPanel::UI::page_header('Restore: Results');
 
     my $type_label = GnizaCPanel::UI::esc($TYPE_LABELS{$type});
@@ -792,6 +800,7 @@ sub handle_step4 {
         print qq{</div>\n</div>\n};
         print qq{<a href="index.live.cgi" class="btn btn-info btn-sm">Back to Categories</a>\n};
         print GnizaCPanel::UI::page_footer();
+        print $cpanel->footer();
         return;
     }
 
@@ -827,6 +836,7 @@ sub handle_step4 {
     print qq{<a href="index.live.cgi" class="btn btn-info btn-sm">Back to Categories</a>\n};
 
     print GnizaCPanel::UI::page_footer();
+    print $cpanel->footer();
 }
 
 sub _render_results {