diff --git a/app/Exceptions/Handler.php b/app/Exceptions/Handler.php
index 70b0ce5..5f8ee13 100644
--- a/app/Exceptions/Handler.php
+++ b/app/Exceptions/Handler.php
@@ -3,10 +3,12 @@
 namespace App\Exceptions;
 
 use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
-use Throwable;
 use Illuminate\Support\Facades\Mail;
-use Symfony\Component\ErrorHandler\Exception\FlattenException;
+use Laravel\Passport\Exceptions\OAuthServerException;
 use Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer;
+use Symfony\Component\ErrorHandler\Exception\FlattenException;
+use Symfony\Component\HttpFoundation\Response;
+use Throwable;
 
 class Handler extends ExceptionHandler
 {
@@ -16,7 +18,10 @@ class Handler extends ExceptionHandler
      * @var array
      */
     protected $dontReport = [
-        //
+        // OAuth-Client-Fehler (z. B. Bots, die /oauth/authorize ohne gültige
+        // Parameter abklopfen). Werden sauber als 4xx an den Aufrufer gerendert
+        // und sind keine Applikationsfehler – lösen daher keine Exception-Mail aus.
+        OAuthServerException::class,
     ];
 
     /**
@@ -32,7 +37,6 @@ class Handler extends ExceptionHandler
     /**
      * Report or log an exception.
      *
-     * @param  \Throwable  $exception
      * @return void
      *
      * @throws \Exception
@@ -49,10 +53,9 @@ class Handler extends ExceptionHandler
      * Render an exception into an HTTP response.
      *
      * @param  \Illuminate\Http\Request  $request
-     * @param  \Throwable  $exception
-     * @return \Symfony\Component\HttpFoundation\Response
+     * @return Response
      *
-     * @throws \Throwable
+     * @throws Throwable
      */
     public function render($request, Throwable $exception)
     {
@@ -67,24 +70,23 @@ class Handler extends ExceptionHandler
 
             $css = $handler->getStylesheet();
             $content = $handler->getBody($e);
-            //Mail::to(config('app.exception_mail'))->send(new MailContact($contact));
+            // Mail::to(config('app.exception_mail'))->send(new MailContact($contact));
             // Verwende normale Mail-Klasse statt Facade, um Probleme bei der Initialisierung zu vermeiden
             $to = config('app.exception_mail');
-            $subject = 'gruene-seele Exception: ' . \Request::fullUrl();
+            $subject = 'gruene-seele Exception: '.\Request::fullUrl();
 
             if ($to) {
                 \Mail::send('emails.exception', compact('css', 'content'), function ($message) use ($to, $subject) {
                     $message
                         ->to($to)
-                        ->subject($subject)
-                    ;
+                        ->subject($subject);
                 });
             }
         } catch (Throwable $ex) {
             // Einfache Fehlerprotokollierung ohne Facade
             file_put_contents(
-                storage_path('logs/laravel-' . date('Y-m-d') . '.log'),
-                '[' . date('Y-m-d H:i:s') . '] exception-handler-error: ' . $ex->getMessage() . "\n",
+                storage_path('logs/laravel-'.date('Y-m-d').'.log'),
+                '['.date('Y-m-d H:i:s').'] exception-handler-error: '.$ex->getMessage()."\n",
                 FILE_APPEND
             );
         }
diff --git a/dev/product management /briefing-anpassungen-27-04-2026.md b/dev/product management /00-konzept/briefing-anpassungen-27-04-2026.md
similarity index 100%
rename from dev/product management /briefing-anpassungen-27-04-2026.md
rename to dev/product management /00-konzept/briefing-anpassungen-27-04-2026.md
diff --git a/dev/product management /briefing.md b/dev/product management /00-konzept/briefing.md
similarity index 100%
rename from dev/product management /briefing.md
rename to dev/product management /00-konzept/briefing.md
diff --git a/dev/product management /feedback.md b/dev/product management /00-konzept/feedback.md
similarity index 100%
rename from dev/product management /feedback.md
rename to dev/product management /00-konzept/feedback.md
diff --git a/dev/product management /konzept-final.md b/dev/product management /00-konzept/konzept-final.md
similarity index 100%
rename from dev/product management /konzept-final.md
rename to dev/product management /00-konzept/konzept-final.md
diff --git a/dev/product management /konzept.md b/dev/product management /00-konzept/konzept.md
similarity index 100%
rename from dev/product management /konzept.md
rename to dev/product management /00-konzept/konzept.md
diff --git a/dev/product management /entwicklungsplan-aktualisiert-02-06-2026.md b/dev/product management /01-entwicklungsplaene/entwicklungsplan-aktualisiert-02-06-2026.md
similarity index 100%
rename from dev/product management /entwicklungsplan-aktualisiert-02-06-2026.md
rename to dev/product management /01-entwicklungsplaene/entwicklungsplan-aktualisiert-02-06-2026.md
diff --git a/dev/product management /entwicklungsplan-aktualisiert-06-07-2026.md b/dev/product management /01-entwicklungsplaene/entwicklungsplan-aktualisiert-06-07-2026.md
similarity index 100%
rename from dev/product management /entwicklungsplan-aktualisiert-06-07-2026.md
rename to dev/product management /01-entwicklungsplaene/entwicklungsplan-aktualisiert-06-07-2026.md
diff --git a/dev/product management /entwicklungsplan-aktualisiert-12-06-2026.md b/dev/product management /01-entwicklungsplaene/entwicklungsplan-aktualisiert-12-06-2026.md
similarity index 100%
rename from dev/product management /entwicklungsplan-aktualisiert-12-06-2026.md
rename to dev/product management /01-entwicklungsplaene/entwicklungsplan-aktualisiert-12-06-2026.md
diff --git a/dev/product management /entwicklungsplan-aktualisiert-27-04-2026.md b/dev/product management /01-entwicklungsplaene/entwicklungsplan-aktualisiert-27-04-2026.md
similarity index 100%
rename from dev/product management /entwicklungsplan-aktualisiert-27-04-2026.md
rename to dev/product management /01-entwicklungsplaene/entwicklungsplan-aktualisiert-27-04-2026.md
diff --git a/dev/product management /entwicklungsplan.md b/dev/product management /01-entwicklungsplaene/entwicklungsplan.md
similarity index 100%
rename from dev/product management /entwicklungsplan.md
rename to dev/product management /01-entwicklungsplaene/entwicklungsplan.md
diff --git a/dev/product management /audit-bericht-15-07-2026.md b/dev/product management /02-audit/audit-bericht-15-07-2026.md
similarity index 100%
rename from dev/product management /audit-bericht-15-07-2026.md
rename to dev/product management /02-audit/audit-bericht-15-07-2026.md
diff --git a/dev/product management /ap-32-brueckenloesung-connector-update.md b/dev/product management /03-status-und-vorschlaege/ap-32-brueckenloesung-connector-update.md
similarity index 100%
rename from dev/product management /ap-32-brueckenloesung-connector-update.md
rename to dev/product management /03-status-und-vorschlaege/ap-32-brueckenloesung-connector-update.md