feat: session manger (#867)

* feat: init session manger

* feat: persist selected app to localStorage

- Save app selection when switching providers
- Restore last selected app on page load

* feat: persist current view to localStorage

- Save view selection when switching tabs
- Restore last selected view on page load

* styles: update ui

* feat: Improve macOS Terminal activation and refactor Kitty launch to use  command with user's default shell.

* fix: session view

* feat: toc

* feat: Implement FlexSearch for improved session search functionality.

* feat: Redesign session manager search and filter UI for a more compact and dynamic experience.

* refactor: modularize session manager by extracting components and utility functions into dedicated files.

* feat: Enhance session terminal launching with support for iTerm2, Ghostty, WezTerm, and Alacritty, including UI and custom configuration options.

* feat: Conditionally render terminal selection and resume session buttons only on macOS.

src/i18n/locales/en.json

@@ -400,6 +400,35 @@
     "gemini": "Gemini",
     "opencode": "OpenCode"
   },
+  "sessionManager": {
+    "title": "Session Manager",
+    "subtitle": "Manage Codex and Claude Code sessions",
+    "searchPlaceholder": "Search by content, directory, or ID",
+    "providerFilterAll": "All",
+    "sessionList": "Sessions",
+    "loadingSessions": "Loading sessions...",
+    "noSessions": "No sessions found",
+    "selectSession": "Select a session to view details",
+    "noSummary": "No summary available",
+    "lastActive": "Last active",
+    "projectDir": "Project directory",
+    "sourcePath": "Source file",
+    "copyResumeCommand": "Copy resume command",
+    "resumeCommandCopied": "Resume command copied",
+    "openInTerminal": "Resume in terminal",
+    "terminalTargetTerminal": "Terminal",
+    "terminalTargetKitty": "kitty",
+    "terminalTargetCopy": "Copy only",
+    "terminalLaunched": "Terminal launched",
+    "openFailed": "Failed to launch terminal",
+    "resumeFallbackCopied": "Resume command copied for manual use",
+    "copyProjectDir": "Copy directory",
+    "projectDirCopied": "Directory copied",
+    "copySourcePath": "Copy source file",
+    "sourcePathCopied": "Source file copied",
+    "loadingMessages": "Loading transcript...",
+    "emptySession": "No messages available"
+  },
   "console": {
     "providerSwitchReceived": "Received provider switch event:",
     "setupListenerFailed": "Failed to setup provider switch listener:",

src/i18n/locales/ja.json

@@ -400,6 +400,35 @@
     "gemini": "Gemini",
     "opencode": "OpenCode"
   },
+  "sessionManager": {
+    "title": "セッション管理",
+    "subtitle": "Codex / Claude Code のセッションを管理",
+    "searchPlaceholder": "内容・ディレクトリ・ID で検索",
+    "providerFilterAll": "すべて",
+    "sessionList": "セッション一覧",
+    "loadingSessions": "セッションを読み込み中...",
+    "noSessions": "セッションが見つかりません",
+    "selectSession": "セッションを選択してください",
+    "noSummary": "概要なし",
+    "lastActive": "最終アクティブ",
+    "projectDir": "プロジェクトディレクトリ",
+    "sourcePath": "元ファイル",
+    "copyResumeCommand": "再開コマンドをコピー",
+    "resumeCommandCopied": "再開コマンドをコピーしました",
+    "openInTerminal": "ターミナルで再開",
+    "terminalTargetTerminal": "Terminal",
+    "terminalTargetKitty": "kitty",
+    "terminalTargetCopy": "コピーのみ",
+    "terminalLaunched": "ターミナルを起動しました",
+    "openFailed": "ターミナルの起動に失敗しました",
+    "resumeFallbackCopied": "再開コマンドをコピーしました（手動で実行してください）",
+    "copyProjectDir": "ディレクトリをコピー",
+    "projectDirCopied": "ディレクトリをコピーしました",
+    "copySourcePath": "元ファイルをコピー",
+    "sourcePathCopied": "元ファイルをコピーしました",
+    "loadingMessages": "内容を読み込み中...",
+    "emptySession": "表示できる内容がありません"
+  },
   "console": {
     "providerSwitchReceived": "プロバイダー切り替えイベントを受信:",
     "setupListenerFailed": "プロバイダー切り替えリスナーの設定に失敗:",

src/i18n/locales/zh.json

@@ -400,6 +400,35 @@
     "gemini": "Gemini",
     "opencode": "OpenCode"
   },
+  "sessionManager": {
+    "title": "会话管理",
+    "subtitle": "管理 Codex 与 Claude Code 会话记录",
+    "searchPlaceholder": "搜索会话内容、目录或 ID",
+    "providerFilterAll": "全部",
+    "sessionList": "会话列表",
+    "loadingSessions": "加载会话中...",
+    "noSessions": "未发现会话",
+    "selectSession": "请选择会话查看详情",
+    "noSummary": "暂无摘要",
+    "lastActive": "最近活跃",
+    "projectDir": "项目目录",
+    "sourcePath": "原始文件",
+    "copyResumeCommand": "复制恢复命令",
+    "resumeCommandCopied": "恢复命令已复制",
+    "openInTerminal": "在终端恢复",
+    "terminalTargetTerminal": "Terminal",
+    "terminalTargetKitty": "kitty",
+    "terminalTargetCopy": "仅复制",
+    "terminalLaunched": "终端已启动",
+    "openFailed": "终端启动失败",
+    "resumeFallbackCopied": "已复制恢复命令，可手动粘贴到终端",
+    "copyProjectDir": "复制目录",
+    "projectDirCopied": "目录已复制",
+    "copySourcePath": "复制原始文件",
+    "sourcePathCopied": "原始文件已复制",
+    "loadingMessages": "加载会话内容中...",
+    "emptySession": "该会话暂无可展示内容"
+  },
   "console": {
     "providerSwitchReceived": "收到供应商切换事件:",
     "setupListenerFailed": "设置供应商切换监听器失败:",