feat: introduce notification system and claude notifications (#450)

* feat: introduce notification system and claude notifications

* fix(sw): prevent caching of API requests and WebSocket upgrades

* default to false for webpush notifications and translations for the button

* fix: notifications orchestrator and add a notification when  first enabled

* fix: remove unused state update and dependency in settings controller hook

* fix: show notifications settings tab

* fix: add notifications for response completion for all providers

* feat: show session name in notification and don't reload tab on clicking
--- the notification

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Haileyesus <something@gmail.com>

src/i18n/locales/ja/settings.json

@@ -105,7 +105,28 @@
     "git": "Git",
     "apiTokens": "API & トークン",
     "tasks": "タスク",
+    "notifications": "通知",
     "plugins": "プラグイン"
+
+  },
+  "notifications": {
+    "title": "通知",
+    "description": "受信する通知イベントを設定します。",
+    "webPush": {
+      "title": "Webプッシュ通知",
+      "enable": "プッシュ通知を有効にする",
+      "disable": "プッシュ通知を無効にする",
+      "enabled": "プッシュ通知は有効です",
+      "loading": "更新中...",
+      "unsupported": "このブラウザではプッシュ通知がサポートされていません。",
+      "denied": "プッシュ通知がブロックされています。ブラウザの設定で許可してください。"
+    },
+    "events": {
+      "title": "イベント種別",
+      "actionRequired": "対応が必要",
+      "stop": "実行停止",
+      "error": "実行失敗"
+    }
   },
   "appearanceSettings": {
     "darkMode": {