Show more details on CheckException during scan (Z#23226056)

pretixscan/app/src/main/java/eu/pretix/pretixscan/droid/ui/MainActivity.kt

@@ -1043,6 +1043,10 @@ class MainActivity : AppCompatActivity(), ReloadableActivity, ScannerView.Result
                         (application as PretixScan).connectivityHelper.recordSuccess(System.currentTimeMillis() - startedAt)
                     }
                 }
+            } catch (e: CheckException) {
+                (application as PretixScan).connectivityHelper.recordError()
+                checkResult = TicketCheckProvider.CheckResult(TicketCheckProvider.CheckResult.Type.INVALID, getString(R.string.error_exception))
+                checkResult.reasonExplanation = e.message
             } catch (e: Exception) {
                 Sentry.captureException(e)
                 if (BuildConfig.DEBUG) {

pretixscan/app/src/main/res/values-de/strings.xml

@@ -10,6 +10,7 @@
     <string name="progress_registering">Gerät beim Server registrieren…</string>
     <string name="error_access_revoked">Der Gerätezugriff wurde entfernt, Sie müssen das Gerät am Server neu registrieren.</string>
     <string name="error_unknown_exception">Ein unbekannter Fehler ist aufgetreten</string>
+    <string name="error_exception">Ein Fehler ist aufgetreten</string>
     <string name="error_not_synchronized">Ihr Gerät ist nicht korrekt mit dem Server synchronisiert</string>
     <string name="action_label_settings">Einstellungen</string>
     <string name="action_label_statistics">Statistiken</string>

pretixscan/app/src/main/res/values/strings.xml

@@ -9,6 +9,7 @@
     <string name="progress_registering">Registering device with server…</string>
     <string name="error_access_revoked">Device access has been revoked, you need to register the device with the server again.</string>
     <string name="error_unknown_exception">An unknown error has occurred</string>
+    <string name="error_exception">An error has occurred</string>
     <string name="error_not_synchronized">Your device has not been properly synchronized with the server</string>
     <string name="action_label_ok">OK</string>
     <string name="action_label_settings">Settings</string>