Add trace marker when development console is shown

ChangeLog.md

@@ -5,6 +5,9 @@ Web change log
 
 ## 4.4.0 / 2024-06-10
 
+* Added trace marker (*debug* or *error*) to the server log files when
+  the development console is shown.
+  (@thekid)
 * Merged PR #117: Catch errors and display them in development console.
   (@thekid)
 * Fixed `echo 0;` (or 0.0, or "0") not triggering the development console

src/main/php/xp/web/dev/Console.class.php

@@ -52,11 +52,12 @@ public function filter($req, $res, $invocation) {
     try {
       ob_start();
       yield from $invocation->proceed($req, $buffer);
+      $status= 200;
       $kind= 'debug';
       $debug= ob_get_clean();
     } catch (Throwable $t) {
+      $buffer->answer($status= $t instanceof Error ? $t->status() : 500);
       $kind= 'error';
-      $buffer->answer($t instanceof Error ? $t->status() : 500);
       $debug= ob_get_clean()."\n".XPException::wrap($t)->toString();
     } finally {
       $buffer->end();
@@ -67,7 +68,8 @@ public function filter($req, $res, $invocation) {
     if (0 === strlen($debug)) {
       $out->drain($res);
     } else {
-      $res->status(200, 'Debug');
+      $res->trace+= ['console' => $kind];
+      $res->answer($status, $kind);
       $res->send($this->transform(typeof($this)->getClassLoader()->getResource($this->template), [
         'kind'     => $kind,
         'debug'    => $debug,