feat: voice assistant integration, PiP window fixes, widget improvements and pixel art scrollbar

- Android voice assistant: RecognitionService, VoiceInteractionSession with startAssistantActivity, es-HN speech recognition
- Voice transcript sent to first alive terminal via WebSocket, opens FloatingTranscriptDebug on correct session
- PiP window: fix close button using getCurrentWebviewWindow(), add mini/restore toggle, remove alwaysOnTop
- Add webview-close and window-destroy permissions to capabilities
- Pixel art ocean scrollbar on /transcript-debug respecting scroll nav mode settings
- Widget improvements: terminal list service, input widget provider, updated layouts

src-tauri/gen/android/app/src/main/AndroidManifest.xml

@@ -9,7 +9,8 @@
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:theme="@style/Theme.agent_ui"
-        android:usesCleartextTraffic="${usesCleartextTraffic}">
+        android:usesCleartextTraffic="${usesCleartextTraffic}"
+        android:networkSecurityConfig="@xml/network_security_config">
         <activity
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|smallestScreenSize|screenLayout|uiMode"
             android:launchMode="singleTask"
@@ -37,6 +38,21 @@
                 android:resource="@xml/transcript_widget_info" />
         </receiver>
 
+        <!-- Input Widget -->
+        <receiver
+            android:name=".InputWidgetProvider"
+            android:exported="false">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+                <action android:name="com.agentui.desktop.INPUT_WIDGET_SEND" />
+                <action android:name="com.agentui.desktop.INPUT_WIDGET_MIC" />
+                <action android:name="com.agentui.desktop.INPUT_WIDGET_CANCEL" />
+            </intent-filter>
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/input_widget_info" />
+        </receiver>
+
         <!-- Voice Command / Share / Assist Activity -->
         <activity
             android:name=".VoiceCommandActivity"