[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>

tests/server/session-command-plan.test.ts

@@ -59,6 +59,7 @@ function makeContext(state: any, commandResult: Record<string, unknown> = {
   const runQueuedItem = vi.fn()
   const bridge = {
     command: vi.fn(async () => commandResult),
+    mcpReload: vi.fn(async () => ({ ok: true, message: 'MCP servers reloaded' })),
     status: vi.fn(async () => ({
       exists: true,
       running: false,
@@ -303,4 +304,30 @@ describe('plan session command', () => {
       }),
     }))
   })
+
+  it('rejects MCP reload while the session is running', async () => {
+    const state = { messages: [], isWorking: true, events: [], queue: [] }
+    const { bridge, namespaceEmit, runQueuedItem, sessionMap, socket, nsp } = makeContext(state)
+    const { handleSessionCommand, parseSessionCommand } = await import('../../packages/server/src/services/hermes/run-chat/session-command')
+    const command = parseSessionCommand('/reload-mcp github')!
+
+    await handleSessionCommand('session-1', command, {
+      nsp: nsp as any,
+      socket: socket as any,
+      sessionMap,
+      bridge: bridge as any,
+      profile: 'default',
+      runQueuedItem,
+    })
+
+    expect(bridge.mcpReload).not.toHaveBeenCalled()
+    expect(runQueuedItem).not.toHaveBeenCalled()
+    expect(namespaceEmit).toHaveBeenCalledWith('session.command', expect.objectContaining({
+      command: 'reload-mcp',
+      ok: false,
+      action: 'reload-mcp',
+      terminal: false,
+      message: 'MCP reload can only run while the session is idle. Wait for the current run to finish or abort it first.',
+    }))
+  })
 })