"Verbindung testen" only appeared after a config was already saved,
so a fresh/never-configured tenant had no way to validate connection
details at all. Now the button is always visible; POST /ldap/test-connection
accepts optional ad-hoc serverUrl/bindDn/bindPassword and falls back
field-by-field to the saved config for anything omitted (bindPassword
in particular, since the form never re-sends the masked saved password).
Verified locally: tested with typed-but-unsaved values (base DN left
blank, nothing saved) and got a real connection attempt/error back,
not a 404 "no config" response.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
schalli
39aa4bff2a