fix: install_failure type mismatch — issue never reached GitHub

SetupActivity was sending type 'install-failure' (hyphen) but the PHP
version-guard bypass list only checked for 'install_failure' (underscore).
Result: if the kiosk was not on the latest released version the error was
silently discarded and no GitHub issue was created.

Fix:
- SetupActivity: change type to 'install_failure' (underscore, consistent
  with KioskActivity which already used the correct name)
- api/index.php: add 'install-failure' (hyphen) to the bypass list as
  defensive fallback so old APK builds already in the field are covered too

api/index.php

@@ -5691,7 +5691,7 @@ function reportError(): void {
     // Exception: install/update errors are ALWAYS reported regardless of version,
     // because a device that is failing to install the update is by definition on
     // an old version — suppressing the issue is the opposite of useful.
-    $installErrorTypes = ['install_download_failed', 'install_failure', 'install_packager_exception'];
+    $installErrorTypes = ['install_download_failed', 'install_failure', 'install-failure', 'install_packager_exception'];
     $bypassVersionGuard = in_array($type, $installErrorTypes, true)
         || ($context['version_guard_bypass'] ?? false);
     if (!$bypassVersionGuard && !_isLatestVersion($version)) {

evershelf-kiosk/app/src/main/kotlin/it/dadaloop/evershelf/kiosk/SetupActivity.kt

@@ -868,7 +868,7 @@ class SetupActivity : AppCompatActivity() {
                                 val msg = intent?.getStringExtra(android.content.pm.PackageInstaller.EXTRA_STATUS_MESSAGE) ?: "status=$status"
                                 setGatewayUI("❌", getString(R.string.install_error_install), msg, 0xFFf87171.toInt())
                                 ErrorReporter.reportMessage(
-                                    "install-failure",
+                                    "install_failure",
                                     "PackageInstaller failed: status=$status msg=$msg",
                                     mapOf("pkg" to targetPkg, "status" to status, "msg" to msg)
                                 )