fix(phone-connect): zh-Hans locale, aliasMap, box padding, volume, config data loss, interval, dead settings, slider, UI issues (#199)

* fix(phone-connect): zh-Hans locale, switcher aliasMap, box padding

- Rename zh_hans -> zh-Hans (plugin.toml value, en.json key) and add
  the missing translations/zh-Hans.json. The zh_hans tag does not match
  BCP 47, so the framework's materialize step dropped the Chinese
  translation file and t() returned raw dot keys in the UI.
- Add missing aliasMap definition in switcher() so the multi-device
  panel no longer errors on aliasMap[id]. Fixes #176.
- Replace ui.box({padding=...}) with ui.row({padding=...}); box does
  not support the padding prop, causing ui-tree warnings on open.

Supersedes #190 (which covers only the aliasMap fix).

* fix(phone-connect): volume quoting, config data loss, interval, dead settings, slider, UI issues

1. media_set_volume: shellQuote the <int32> variant arg (was unquoted,
   shell treated < as redirect; same fix as media_seek).
2. onConfigChanged: track last-applied custom_image/device_alias values
   so unrelated config edits (e.g. language switch) no longer wipe a
   device's image/alias. Seed trackers at init so reload is safe too.
3. state_update_interval=0: return 3600000ms + guard in update() to
   skip auto-refresh, matching the '0 disables' description.
4. Remove 4 dead settings (show_ongoing_media, show_device_placeholder,
   scan_subdirectories, max_recent_images) declared but never read,
   plus orphan recent_images translation keys.
5. Media slider: freeze value during drag via per-device dragState so
   the 1s service refresh doesn't yank the slider back. Also fixes
   onDragEnd seeking to a stale seekPos.
6. Minor: runCli reports cli_failed not no_backend; browse uses runAsync
   not runInTerminal; charging color priority over low-battery; device
   name falls back to d.name; fix comment mismatches.

* chore: bump version to 0.1.1

* fix: use lowercase zh-hans translation key to pass CI validation

CI rejects uppercase in translation keys (zh-Hans). The translation key
and label_key are now lowercase zh-hans, while the file name stays
zh-Hans.json (required by the framework's materialize step) and the
select value stays zh-Hans (used to build the file path).

phone-connect/translations/zh-Hans.json

@@ -0,0 +1,101 @@
+{
+  "settings": {
+    "state_update_interval": {
+      "label": "状态刷新间隔",
+      "description": "自动刷新设备状态的间隔秒数。0 表示禁用。"
+    },
+    "enable_charging_animation": {
+      "label": "充电高亮",
+      "description": "设备充电时高亮显示栏部件。"
+    },
+    "custom_image": {
+      "label": "设备头像",
+      "description": "选中设备后在此设置自定义头像图片。留空恢复默认图标。"
+    },
+    "device_alias": {
+      "label": "设备别名",
+      "description": "当前选中设备的自定义显示名称。"
+    },
+    "language": {
+      "label": "界面语言",
+      "description": "显示语言。",
+      "en": "English",
+      "zh-hans": "简体中文"
+    },
+    "enable_clipboard_action": {
+      "label": "显示剪贴板操作",
+      "description": "显示一键发送剪贴板到设备的快捷操作。"
+    },
+    "panel_placement": {
+      "label": "面板弹出方式",
+      "description": "详情面板的弹出方式。",
+      "attached": "贴合栏",
+      "floating": "悬浮居中",
+      "widget": "部件下方悬浮"
+    }
+  },
+  "status": {
+    "unavailable": "不可用",
+    "no_devices": "无设备",
+    "offline": "离线",
+    "connected": "已连接",
+    "not_paired": "未配对",
+    "no_backend": "KDE Connect 未运行"
+  },
+  "action": {
+    "ring": "响铃",
+    "ping": "Ping",
+    "clipboard": "剪贴板",
+    "share": "分享",
+    "browse": "浏览",
+    "sms": "短信",
+    "pair": "配对",
+    "accept": "接受",
+    "reject": "拒绝",
+    "unpair": "取消配对",
+    "refresh": "刷新",
+    "switch": "切换设备"
+  },
+  "notify": {
+    "ringing": "正在响铃 {name}...",
+    "ping_sent": "已向 {name} 发送 Ping",
+    "clipboard_sent": "剪贴板已发送",
+    "pairing_sent": "已发送配对请求",
+    "paired": "设备已配对",
+    "unpaired": "设备已取消配对",
+    "opening_browser": "正在打开文件浏览器...",
+    "sms_sent": "短信已发送"
+  },
+  "error": {
+    "ring_failed": "响铃失败",
+    "ping_failed": "发送 Ping 失败",
+    "clipboard_failed": "发送剪贴板失败",
+    "share_failed": "分享失败",
+    "browse_failed": "浏览设备失败",
+    "pairing_failed": "配对失败",
+    "accept_failed": "接受配对失败",
+    "reject_failed": "拒绝配对失败",
+    "unpair_failed": "取消配对失败",
+    "no_backend": "无后端",
+    "cli_failed": "命令失败"
+  },
+  "panel": {
+    "title": "手机连接",
+    "empty": "未找到设备。请在 KDE Connect 中配对设备。",
+    "devices_connected": "已连接 {connected} · 已配对 {paired}",
+    "now_playing": "正在播放",
+    "no_media": "无媒体播放",
+    "image_path": "自定义图片",
+    "sms": "发送短信",
+    "sms_dest": "手机号码",
+    "sms_msg": "短信内容",
+    "sms_send": "发送",
+    "battery": "电量",
+    "network": "网络",
+    "pairing": "配对",
+    "type": "类型",
+    "paired": "已配对",
+    "unpaired": "未配对",
+    "unknown": "未知"
+  }
+}