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

server/routes/session-state-proxy.ts

@@ -7,10 +7,13 @@ import { PORT_TERMINAL } from '../config'
  * so external clients (Android widget) get everything in one call.
  */
 export async function handleSessionStateProxy(url: URL): Promise<Response> {
+  const controller = new AbortController()
+  const timeout = setTimeout(() => controller.abort(), 6000)
+
   try {
     const [stateResp, registryResp] = await Promise.all([
-      fetch(`http://localhost:${PORT_TERMINAL}/session-state`),
-      fetch(`http://localhost:${PORT_TERMINAL}/terminal-registry`)
+      fetch(`http://localhost:${PORT_TERMINAL}/session-state`, { signal: controller.signal }),
+      fetch(`http://localhost:${PORT_TERMINAL}/terminal-registry`, { signal: controller.signal })
     ])
 
     const stateData = stateResp.ok ? await stateResp.json() : { agents: {} }
@@ -21,6 +24,11 @@ export async function handleSessionStateProxy(url: URL): Promise<Response> {
       registry: registryData.registry ?? []
     })
   } catch (e: any) {
-    return errorResponse(`Failed to reach terminal server: ${e.message}`, 502)
+    const msg = e.name === 'AbortError'
+      ? 'Terminal server timeout (6s)'
+      : `Failed to reach terminal server: ${e.message}`
+    return errorResponse(msg, 502)
+  } finally {
+    clearTimeout(timeout)
   }
 }