feat(devices): BLE LED controller support (SP110E/Triones/Zengge/Govee)

End-to-end BLE streaming: provider + client + per-protocol wire encoders
with whole-strip averaging, desktop (bleak) and Android (Kotlin BleBridge
via Chaquopy) transports, discovery with protocol-family detection that
auto-fills the UI, throttled not-connected warning + 10 s reconnect
cooldown so a dropped link no longer stalls the pipeline at ~30 s/frame,
and an explicit asyncio.wait_for wrapper around bleak connect() since
the WinRT backend doesn't always honor the timeout kwarg.

Also rewrites server/restart.ps1 to be parameterized (-Port / -Module /
-PythonVersion / timeouts / -Quiet), pick the right interpreter via the
py launcher, pre-flight the target module, poll port readiness on both
shutdown and startup, redirect child stdout/stderr so Start-Process
doesn't hang on inherited Git-Bash handles, and return proper exit codes.

Rolls in concurrent work: Android BLE permissions + launcher icons + ru/zh
resources, Chaquopy-safe value_stream psutil fallback, setup-required
modal, asset-store test coverage, and misc system/config touch-ups.

android/app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Adaptive icon foreground: TV with LED glow strips.
+     Centered in the 108dp safe zone (inner 72dp is guaranteed visible). -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <!-- TV body -->
+    <path
+        android:fillColor="#1c2333"
+        android:pathData="M26,32 L82,32 Q86,32 86,36 L86,68 Q86,72 82,72 L26,72 Q22,72 22,68 L22,36 Q22,32 26,32 Z" />
+    <!-- TV screen -->
+    <path
+        android:fillColor="#161b22"
+        android:pathData="M28,35 L80,35 Q82,35 82,37 L82,66 Q82,68 80,68 L28,68 Q26,68 26,66 L26,37 Q26,35 28,35 Z" />
+    <!-- LED glow - top (teal) -->
+    <path
+        android:fillColor="#64ffda"
+        android:fillAlpha="0.7"
+        android:pathData="M30,28 L78,28 L78,30 L30,30 Z" />
+    <!-- LED glow - left (purple) -->
+    <path
+        android:fillColor="#bb86fc"
+        android:fillAlpha="0.6"
+        android:pathData="M18,34 L20,34 L20,70 L18,70 Z" />
+    <!-- LED glow - right (red) -->
+    <path
+        android:fillColor="#ff6b6b"
+        android:fillAlpha="0.6"
+        android:pathData="M88,34 L90,34 L90,70 L88,70 Z" />
+    <!-- LED glow - bottom (yellow) -->
+    <path
+        android:fillColor="#ffd93d"
+        android:fillAlpha="0.6"
+        android:pathData="M30,74 L78,74 L78,76 L30,76 Z" />
+    <!-- TV stand -->
+    <path
+        android:fillColor="#1c2333"
+        android:pathData="M44,72 L44,78 L64,78 L64,72" />
+    <path
+        android:fillColor="#1c2333"
+        android:pathData="M38,78 L70,78 L70,80 L38,80 Z" />
+</vector>

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/bg_navy" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

android/app/src/main/res/values-ru/strings.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">LedGrab</string>
+    <string name="tagline">Фоновая подсветка для телевизора</string>
+    <string name="btn_start">Начать захват</string>
+    <string name="btn_stop">Стоп</string>
+    <string name="status_running">Работает</string>
+    <string name="label_web_ui">Адрес веб-интерфейса</string>
+    <string name="scan_to_configure">Сканируйте для настройки</string>
+    <string name="qr_description">QR-код для веб-интерфейса</string>
+</resources>

android/app/src/main/res/values-zh/strings.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">LedGrab</string>
+    <string name="tagline">电视氛围灯光</string>
+    <string name="btn_start">开始捕获</string>
+    <string name="btn_stop">停止</string>
+    <string name="status_running">运行中</string>
+    <string name="label_web_ui">Web界面地址</string>
+    <string name="scan_to_configure">扫码配置</string>
+    <string name="qr_description">Web界面二维码</string>
+</resources>

android/app/src/main/res/xml/network_security_config.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    LedGrab communicates with WLED controllers, Home Assistant, and MQTT
+    brokers on the local network via plain HTTP/UDP.  Cleartext traffic
+    must be allowed for these connections to work on Android 9+.
+-->
+<network-security-config>
+    <base-config cleartextTrafficPermitted="true" />
+</network-security-config>