cleanup and htaccess fix

.htaccess

@@ -2,9 +2,5 @@ DirectoryIndex launch.html
 
 # Hide repository meta files behind 404
 <IfModule mod_rewrite.c>
-  RewriteEngine On
+  RewriteRule ^(README\.md|LICENSE|AGENTS\.md|.gitignore|.htaccess)$ - [NC,R=404,L]
-  RewriteRule ^(README\.md|LICENSE|AGENTS\.md)$ - [NC,R=404,L]
-
-  # security.txt: redirect to central security contact
-  RewriteRule ^\.well-known/security\.txt$ https://www.bnvb-ingenieure.de/.well-known/security.txt [NC,R=301,L]
 </IfModule>