[codex] fix MCP management lifecycle (#1144)

* feat(mcp): add MCP server management UI

- Server CRUD: add/edit/remove with YAML/JSON Monaco editor
- raw_config passthrough: zero field loss on edit/toggle
- tool_details embedding: single-request card data (1+N → 1)
- Auto-retry exponential backoff (2s→32s, max 5 retries)
- Route safety guards (hasRoute) for dynamic sidebar
- i18n: 9 languages (de/en/es/fr/ja/ko/pt/zh/zh-TW)
- 19 unit tests + 8 UX browser tests
- 35 files, +2933 lines

* fix mcp management lifecycle

---------

Co-authored-by: Crafter-feng <succeed_happu@163.com>

packages/client/src/i18n/locales/en.ts

@@ -105,6 +105,60 @@ export default {
     stop: 'Stop',
   },
 
+  // MCP Management
+  mcp: {
+    title: 'MCP Servers',
+    loadFailed: 'Failed to load MCP servers',
+    reloadAll: 'Reload All',
+    refresh: 'Refresh',
+    total: 'Total',
+    connected: 'Connected',
+    disconnected: 'Disconnected',
+    tools: 'tools',
+    tool: 'Tools',
+    searchPlaceholder: 'Search servers...',
+    addServer: '+ Add Server',
+    zeroTools: '0 tools',
+    loading: 'Loading...',
+    empty: 'No MCP servers configured',
+    reloaded: 'Reloaded {server}',
+    reloadedAll: 'All MCP servers reloaded',
+    reloadFailed: 'Reload failed',
+    serverAdded: 'Server "{name}" added',
+    addFailed: 'Failed to add server',
+    serverUpdated: 'Server "{name}" updated',
+    updateFailed: 'Failed to update server',
+    saveFailed: 'Save failed',
+    serverRemoved: 'Removed "{name}"',
+    enabled: "Enabled {name}",
+    disabled: "Disabled {name}",
+    connectedStatus: 'Connected',
+    disconnectedStatus: 'Disconnected',
+    disabledStatus: 'Disabled',
+    toolList: 'Tool List',
+    count: ' ',
+    more: 'more',
+    removeFailed: 'Failed to remove server',
+    testOk: 'Test OK — {count} tools available',
+    testEmpty: 'Test returned no tools',
+    testFailed: 'Test failed',
+    edit: 'Edit',
+    test: 'Test',
+    reload: 'Reload',
+    remove: 'Remove',
+    confirmRemove: 'Remove server "{name}"?',
+    cancel: 'Cancel',
+    add: 'Add',
+    save: 'Save',
+    addTitle: 'Add MCP Server',
+    editTitle: 'Edit MCP Server',
+    invalidJson: 'Invalid JSON format',
+    invalidYaml: 'Invalid YAML format',
+    invalidConfig: 'Invalid configuration',
+    invalidServerConfig: 'Invalid server configuration',
+    missingCommandOrUrl: 'Must have command or url',
+  },
+
   // Sidebar
   sidebar: {
     chat: 'Chat',
@@ -117,6 +171,7 @@ export default {
     profiles: 'Profiles',
     skills: 'Skills',
     plugins: 'Plugins',
+    mcp: 'MCP',
     memory: 'Memory',
     logs: 'Logs',
     usage: 'Usage',
@@ -236,6 +291,7 @@ export default {
       compress: 'Run context compression while idle',
       steer: 'Send steering text to the active bridge run',
       destroy: 'Release the bridge agent for this session',
+      reloadMcp: 'Reload MCP servers',
     },
     attachFiles: 'Attach files',
     autoPlaySpeech: 'Auto-play voice',