fix(qml): correzioni Silica post-primo-test su device (v0.1.1)

Pagine non caricabili ("Impossibile caricare la pagina") per API
inesistenti nella Silica del kit Sailfish 5.1 / Qt 5.6 — verificate
sui docs ufficiali (pagine -members) e incrociate coi pattern
provati su device (tide/calibreweb/quill):

- TextField: rimosso onAccepted (segnale "accepted" inesistente)
  -> EnterKey.enabled/.onClicked (LoginPage, ChatPage)
- Button: rimosso "highlighted" (inesistente su Button) dal mic
- ComboBox: menu con MenuItem espliciti (via Repeater non provato)
- Theme.highlightDimmerColor -> Theme.rgba(highlightBackgroundColor)
- Azioni nei menu instradate via funzioni della Page (pattern tide)
- SessionsPage: titolo delegato piu' robusto (no "undefined")

qml/pages/ChatPage.qml

@@ -55,21 +55,21 @@ Page {
             }
             MenuItem {
                 text: appSettings.ttsAutoRead ? qsTr("Auto-read: on") : qsTr("Auto-read: off")
-                onClicked: appSettings.ttsAutoRead = !appSettings.ttsAutoRead
+                onClicked: page.toggleAutoRead()
             }
             MenuItem {
                 text: qsTr("Stop playback")
                 visible: player.playing
-                onClicked: player.stop()
+                onClicked: page.stopPlayback()
             }
             MenuItem {
                 text: qsTr("Cancel run")
                 visible: chat.busy
-                onClicked: chat.cancel()
+                onClicked: page.cancelRun()
             }
             MenuItem {
                 text: qsTr("Resync")
-                onClicked: chat.resync()
+                onClicked: page.resync()
             }
         }
 
@@ -111,7 +111,7 @@ Page {
         anchors.bottom: parent.bottom
         anchors.bottomMargin: page.kbHeight
         height: compCol.height + Theme.paddingMedium
-        color: Theme.highlightDimmerColor
+        color: Theme.rgba(Theme.highlightBackgroundColor, 0.15)
 
         Column {
             id: compCol
@@ -141,7 +141,7 @@ Page {
                 Button {
                     id: micBtn
                     text: recorder.recording ? qsTr("Stop") : qsTr("Mic")
-                    highlighted: recorder.recording
+                    // Button non ha "highlighted": lo stato è nel testo (Mic/Stop)
                     enabled: !api.transcribing && !chat.busy || recorder.recording
                     onClicked: {
                         if (recorder.recording)
@@ -157,7 +157,9 @@ Page {
                     id: input
                     width: parent.width - micBtn.width - sendBtn.width - 2 * parent.spacing
                     placeholderText: qsTr("Message…")
-                    onAccepted: page.doSend()
+                    // Invio con EnterKey (vedi LoginPage)
+                    EnterKey.enabled: text.length > 0
+                    EnterKey.onClicked: page.doSend()
                 }
 
                 Button {
@@ -226,6 +228,22 @@ Page {
         api.speak(t)
     }
 
+    function toggleAutoRead() {
+        appSettings.ttsAutoRead = !appSettings.ttsAutoRead
+    }
+
+    function stopPlayback() {
+        player.stop()
+    }
+
+    function cancelRun() {
+        chat.cancel()
+    }
+
+    function resync() {
+        chat.resync()
+    }
+
     function showNotice(text) {
         page.noticeText = text
         noticeClear.restart()

qml/pages/LoginPage.qml

@@ -36,7 +36,10 @@ Page {
             label: qsTr("Password")
             echoMode: TextInput.Password
             inputMethodHints: Qt.ImhNoAutoUppercase | Qt.ImhNoPredictiveText
-            onAccepted: page.doLogin()
+            // Silica TextField NON ha il segnale "accepted": l'invio si gestisce
+            // con la proprietà allegata EnterKey (pattern provato sul device).
+            EnterKey.enabled: text.length > 0
+            EnterKey.onClicked: page.doLogin()
         }
 
         Button {

qml/pages/SessionsPage.qml

@@ -24,15 +24,15 @@ Page {
             }
             MenuItem {
                 text: qsTr("Refresh")
-                onClicked: api.refreshSessions()
+                onClicked: page.refresh()
             }
             MenuItem {
                 text: qsTr("Settings")
-                onClicked: pageStack.push(Qt.resolvedUrl("SettingsPage.qml"))
+                onClicked: page.openSettings()
             }
             MenuItem {
                 text: qsTr("Sign out")
-                onClicked: api.logout()
+                onClicked: page.signOut()
             }
         }
 
@@ -51,7 +51,7 @@ Page {
                     width: parent.width
                     truncationMode: TruncationMode.Fade
                     color: item.highlighted ? Theme.highlightColor : Theme.primaryColor
-                    text: ("" + model.title).length > 0 ? model.title : model.session_id
+                    text: model.title ? model.title : model.session_id
                 }
 
                 Label {
@@ -97,6 +97,18 @@ Page {
 
     Component.onCompleted: api.refreshSessions()
 
+    function refresh() {
+        api.refreshSessions()
+    }
+
+    function openSettings() {
+        pageStack.push(Qt.resolvedUrl("SettingsPage.qml"))
+    }
+
+    function signOut() {
+        api.logout()
+    }
+
     function openSession(id) {
         expectNewSession = false
         pageStack.push(Qt.resolvedUrl("ChatPage.qml"), { sessionId: id })

qml/pages/SettingsPage.qml

@@ -43,13 +43,27 @@ Page {
             ComboBox {
                 label: qsTr("Read-aloud voice")
                 currentIndex: Math.max(0, page.voiceNames.indexOf(appSettings.ttsVoice))
+                // MenuItems espliciti (no Repeater: pattern non provato sul kit 5.1)
                 menu: ContextMenu {
-                    Repeater {
-                        model: page.voiceNames
-                        MenuItem {
-                            text: modelData
-                            onClicked: appSettings.ttsVoice = modelData
-                        }
+                    MenuItem {
+                        text: "it-IT-ElsaNeural"
+                        onClicked: appSettings.ttsVoice = "it-IT-ElsaNeural"
+                    }
+                    MenuItem {
+                        text: "it-IT-DiegoNeural"
+                        onClicked: appSettings.ttsVoice = "it-IT-DiegoNeural"
+                    }
+                    MenuItem {
+                        text: "it-IT-IsabellaNeural"
+                        onClicked: appSettings.ttsVoice = "it-IT-IsabellaNeural"
+                    }
+                    MenuItem {
+                        text: "it-IT-GiuseppeMultilingualNeural"
+                        onClicked: appSettings.ttsVoice = "it-IT-GiuseppeMultilingualNeural"
+                    }
+                    MenuItem {
+                        text: "en-US-AriaNeural"
+                        onClicked: appSettings.ttsVoice = "en-US-AriaNeural"
                     }
                 }
             }
@@ -58,12 +72,17 @@ Page {
                 label: qsTr("TTS engine")
                 currentIndex: Math.max(0, page.engineNames.indexOf(appSettings.ttsEngine))
                 menu: ContextMenu {
-                    Repeater {
-                        model: page.engineNames
-                        MenuItem {
-                            text: modelData
-                            onClicked: appSettings.ttsEngine = modelData
-                        }
+                    MenuItem {
+                        text: "edge"
+                        onClicked: appSettings.ttsEngine = "edge"
+                    }
+                    MenuItem {
+                        text: "openai"
+                        onClicked: appSettings.ttsEngine = "openai"
+                    }
+                    MenuItem {
+                        text: "elevenlabs"
+                        onClicked: appSettings.ttsEngine = "elevenlabs"
                     }
                 }
             }
@@ -80,10 +99,7 @@ Page {
             Button {
                 anchors.horizontalCenter: parent.horizontalCenter
                 text: qsTr("Sign out")
-                onClicked: {
-                    api.logout()
-                    pageStack.replace(Qt.resolvedUrl("LoginPage.qml"))
-                }
+                onClicked: page.signOut()
             }
 
             SectionHeader { text: qsTr("About") }
@@ -104,5 +120,10 @@ Page {
         VerticalScrollDecorator {}
     }
 
+    function signOut() {
+        api.logout()
+        pageStack.replace(Qt.resolvedUrl("LoginPage.qml"))
+    }
+
     Component.onCompleted: urlField.text = appSettings.baseUrl
 }