feat(settings): expand About page into a tool management panel

List all managed apps with current/latest versions, with per-tool install
and update buttons plus an Update All action. Installs and updates now run
silently: the button shows a spinner for the full duration, versions refresh
automatically when done, and failures surface the backend error detail in a
toast.

While loading, the button keeps its label and only swaps the icon for a
spinner, so width stays constant across zh/en/ja instead of jumping when the
text changes (e.g. Update -> Updating...).

Also collapses and renames the install-commands area to Manual Install
Commands, and removes the managed-apps badge row and the Install Missing
batch button.

src/i18n/locales/en.json

@@ -659,9 +659,18 @@
     "viewCurrentReleaseNotes": "View current version release notes",
     "officialWebsite": "Official Website",
     "github": "GitHub",
-    "oneClickInstall": "One-click Install",
-    "oneClickInstallHint": "Install Claude Code / Codex / Gemini CLI / OpenCode",
+    "manualInstallCommands": "Manual Install Commands",
+    "oneClickInstallHint": "Install or upgrade Claude Code / Codex / Gemini CLI / OpenCode / OpenClaw / Hermes",
     "localEnvCheck": "Local environment check",
+    "updateAllTools": "Update All ({{count}})",
+    "currentVersion": "Current Version",
+    "latestVersion": "Latest Version",
+    "updateAvailableShort": "Update",
+    "toolInstall": "Install",
+    "toolUpdate": "Update",
+    "toolReady": "Ready",
+    "toolActionDone": "{{action}} completed for {{count}} tool(s)",
+    "toolActionFailed": "Install/update command failed",
     "envBadge": {
       "wsl": "WSL",
       "windows": "Win",

src/i18n/locales/ja.json

@@ -659,9 +659,18 @@
     "viewCurrentReleaseNotes": "現在のバージョンのリリースノートを見る",
     "officialWebsite": "公式サイト",
     "github": "GitHub",
-    "oneClickInstall": "ワンクリックインストール",
-    "oneClickInstallHint": "Claude Code / Codex / Gemini CLI / OpenCode をインストール",
+    "manualInstallCommands": "手動インストールコマンド",
+    "oneClickInstallHint": "Claude Code / Codex / Gemini CLI / OpenCode / OpenClaw / Hermes をインストールまたは更新",
     "localEnvCheck": "ローカル環境チェック",
+    "updateAllTools": "すべて更新（{{count}}）",
+    "currentVersion": "現在のバージョン",
+    "latestVersion": "最新バージョン",
+    "updateAvailableShort": "更新あり",
+    "toolInstall": "インストール",
+    "toolUpdate": "更新",
+    "toolReady": "準備完了",
+    "toolActionDone": "{{count}} 個のツールの{{action}}が完了しました",
+    "toolActionFailed": "インストール/更新コマンドの実行に失敗しました",
     "envBadge": {
       "wsl": "WSL",
       "windows": "Win",

src/i18n/locales/zh.json

@@ -659,9 +659,18 @@
     "viewCurrentReleaseNotes": "查看当前版本更新日志",
     "officialWebsite": "官方网站",
     "github": "GitHub",
-    "oneClickInstall": "一键安装",
-    "oneClickInstallHint": "安装 Claude Code / Codex / Gemini CLI / OpenCode",
+    "manualInstallCommands": "手动安装命令",
+    "oneClickInstallHint": "安装或升级 Claude Code / Codex / Gemini CLI / OpenCode / OpenClaw / Hermes",
     "localEnvCheck": "本地环境检查",
+    "updateAllTools": "全部升级（{{count}}）",
+    "currentVersion": "当前版本",
+    "latestVersion": "最新版本",
+    "updateAvailableShort": "可升级",
+    "toolInstall": "安装",
+    "toolUpdate": "升级",
+    "toolReady": "已就绪",
+    "toolActionDone": "{{count}} 个工具{{action}}完成",
+    "toolActionFailed": "安装/升级命令执行失败",
     "envBadge": {
       "wsl": "WSL",
       "windows": "Win",