kiosk: gateway auto-launch, update auto-download, gateway setup UX

- KioskActivity: move launchGatewayInBackground() BEFORE enableKioskLock() so
  Android's lock-task restriction does not block starting the gateway Activity
- KioskActivity: webView.clearCache(true) before loadUrl — no caching
- KioskActivity: checkForUpdates() uses proper semver > comparison (not !=)
  to avoid false-positive 'update available' when already up-to-date
- KioskActivity: showNativeUpdateBanner() removed 30s auto-hide, now auto-
  triggers download immediately when update detected
- SetupActivity: onResume() re-checks gateway status when returning from gateway
  config (user opens gateway, configures it, presses back → wizard refreshes)
- SetupActivity: checkGatewayStatus() probes TCP 127.0.0.1:8765 to show whether
  gateway is actually running, with clear 'not running' warning to configure first
- SettingsActivity: same TCP probe for live gateway status in settings screen
- build.gradle.kts: versionCode 9, versionName 1.5.3

evershelf-kiosk/app/build.gradle.kts

@@ -11,8 +11,8 @@ android {
         applicationId = "it.dadaloop.evershelf.kiosk"
         minSdk = 24
         targetSdk = 34
-        versionCode = 8
+        versionCode = 9
-        versionName = "1.5.2"
+        versionName = "1.5.3"
     }
 
     signingConfigs {

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

@@ -312,6 +312,10 @@ class KioskActivity : AppCompatActivity() {
 
     @SuppressLint("SetJavaScriptEnabled")
     private fun launchWebView() {
+        // Start gateway BEFORE entering kiosk lock — in lock task mode Android blocks
+        // startActivity() for other packages, so the gateway would never launch.
+        launchGatewayInBackground()
+
         // Ensure kiosk lock and permissions are active
         enableKioskLock()
         requestAllPermissions()
@@ -432,9 +436,9 @@ class KioskActivity : AppCompatActivity() {
         }, "_kioskBridge")
 
         val url = prefs.getString(KEY_URL, "http://evershelf.local") ?: "http://evershelf.local"
+        webView.clearCache(true)
         webView.loadUrl(url)
 
-        launchGatewayInBackground()
         applyScreensaverFlag()
     }
 
@@ -513,6 +517,19 @@ class KioskActivity : AppCompatActivity() {
                 val norm = { v: String -> v.trimStart('v') }
                 val isSemver = latestTag.trimStart('v').matches(Regex("\\d+\\.\\d+.*"))
 
+                // Compare semver: returns true if `remote` is strictly greater than `local`
+                fun semverNewer(remote: String, local: String): Boolean {
+                    val r = remote.split(".").map { it.filter(Char::isDigit).toIntOrNull() ?: 0 }
+                    val l = local.split(".").map  { it.filter(Char::isDigit).toIntOrNull() ?: 0 }
+                    val len = maxOf(r.size, l.size)
+                    for (i in 0 until len) {
+                        val rv = r.getOrElse(i) { 0 }
+                        val lv = l.getOrElse(i) { 0 }
+                        if (rv != lv) return rv > lv
+                    }
+                    return false
+                }
+
                 val assets = json.optJSONArray("assets")
                 var kioskApkUrl   = ""
                 var gatewayApkUrl = ""
@@ -527,9 +544,9 @@ class KioskActivity : AppCompatActivity() {
                 }
 
                 val kioskNeedsUpdate   = kioskApkUrl.isNotEmpty() && currentKiosk.isNotEmpty() &&
-                    (!isSemver || norm(latestTag) != norm(currentKiosk))
+                    (!isSemver || semverNewer(norm(latestTag), norm(currentKiosk)))
                 val gatewayNeedsUpdate = currentGateway != null && gatewayApkUrl.isNotEmpty() &&
-                    (!isSemver || norm(latestTag) != norm(currentGateway))
+                    (!isSemver || semverNewer(norm(latestTag), norm(currentGateway)))
 
                 if (!kioskNeedsUpdate && !gatewayNeedsUpdate) return@Thread
 
@@ -555,7 +572,9 @@ class KioskActivity : AppCompatActivity() {
         pendingApkDownloadUrl = apkDownloadUrl
         tvUpdateMessage.text = "⬆️ Aggiornamento disponibile:  $message"
         updateBanner.visibility = View.VISIBLE
-        updateBanner.postDelayed({ updateBanner.visibility = View.GONE }, 30_000)
+        // Auto-start download immediately — no timer hide, stays until done or dismissed
+        activeInstallBtn = btnInstallUpdate
+        triggerApkDownload(apkDownloadUrl)
     }
 
     // ── APK Download + Install ─────────────────────────────────────────────

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

@@ -77,6 +77,25 @@ class SettingsActivity : AppCompatActivity() {
                 val intent = packageManager.getLaunchIntentForPackage(GATEWAY_PACKAGE)
                 if (intent != null) startActivity(intent)
             }
+            // Probe WebSocket port in background to show live status
+            Thread {
+                val running = try {
+                    java.net.Socket().use { s ->
+                        s.connect(java.net.InetSocketAddress("127.0.0.1", 8765), 1200); true
+                    }
+                } catch (_: Exception) { false }
+                runOnUiThread {
+                    if (running) {
+                        statusView.text = "Attivo ✅"
+                        statusView.setTextColor(0xFF34d399.toInt())
+                        deviceView.text = "Gateway in ascolto su ws://127.0.0.1:8765"
+                    } else {
+                        statusView.text = "Installato, non avviato ⚠️"
+                        statusView.setTextColor(0xFFfbbf24.toInt())
+                        deviceView.text = "Premi \"Apri Gateway\" per avviarlo e configurarlo"
+                    }
+                }
+            }.start()
         } else {
             btnConfigureGateway.visibility = android.view.View.GONE
         }

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

@@ -189,6 +189,14 @@ class SetupActivity : AppCompatActivity() {
         super.onDestroy()
     }
 
+    override fun onResume() {
+        super.onResume()
+        // When returning from the gateway app (after pressing "Configura"), refresh status
+        if (currentStep == 4 && gatewayInstallCard.visibility == View.VISIBLE) {
+            checkGatewayStatus()
+        }
+    }
+
     // ── Binding ────────────────────────────────────────────────────────────
 
     private fun bindViews() {
@@ -701,12 +709,34 @@ class SetupActivity : AppCompatActivity() {
         if (isGatewayInstalled()) {
             gatewayStatusIcon.text = "✅"
             gatewayStatusText.text = getString(R.string.wizard_gateway_installed)
-            gatewayStatusDetail.text = getString(R.string.wizard_gateway_installed_detail)
+            gatewayStatusDetail.text = "⏳ Verifica connessione in corso..."
-            gatewayStatusDetail.setTextColor(0xFF34d399.toInt())
+            gatewayStatusDetail.setTextColor(0xFF94a3b8.toInt())
             btnInstallGateway.visibility    = View.GONE
             btnConfigureGateway.visibility  = View.VISIBLE
             gatewayProgressBar.visibility   = View.GONE
             gatewayProgressText.visibility  = View.GONE
+            // Probe WebSocket port to tell user if gateway is actually running
+            Thread {
+                val running = try {
+                    java.net.Socket().use { s ->
+                        s.connect(java.net.InetSocketAddress("127.0.0.1", 8765), 1200)
+                        true
+                    }
+                } catch (_: Exception) { false }
+                runOnUiThread {
+                    if (running) {
+                        gatewayStatusDetail.text = "✅ Gateway attivo su ws://127.0.0.1:8765"
+                        gatewayStatusDetail.setTextColor(0xFF34d399.toInt())
+                        btnConfigureGateway.text = "⚙️  Riapri Gateway per configurarlo"
+                    } else {
+                        gatewayStatusDetail.text =
+                            "⚠️ Gateway installato ma non ancora avviato.\n" +
+                            "Premi il pulsante qui sotto per aprirlo e configurarlo, poi torna a questa schermata."
+                        gatewayStatusDetail.setTextColor(0xFFfbbf24.toInt())
+                        btnConfigureGateway.text = "▶️  Apri e configura Gateway"
+                    }
+                }
+            }.start()
         } else {
             gatewayStatusIcon.text = "📲"
             gatewayStatusText.text = getString(R.string.wizard_gateway_not_installed)