🔌 feat: Revoke MCP OAuth Credentials (#9464)

* revocation metadata fields

* store metadata

* get client info and meta

* revoke oauth tokens

* delete flow

* uninstall oauth mcp

* revoke button

* revoke oauth refactor, add comments, test

* adjust for clarity

* test deleteFlow

* handle metadata type

* no mutation

* adjust for clarity

* styling

* restructure for clarity

* move token-specific stuff

* use mcpmanager's oauth servers

* fix typo

* fix addressing of oauth prop

* log prefix

* remove debug log

client/src/components/SidePanel/MCP/MCPPanel.tsx

@@ -1,5 +1,5 @@
 import React, { useState, useMemo, useCallback } from 'react';
-import { ChevronLeft } from 'lucide-react';
+import { ChevronLeft, Trash2 } from 'lucide-react';
 import { useQueryClient } from '@tanstack/react-query';
 import { Button, useToastContext } from '@librechat/client';
 import { Constants, QueryKeys } from 'librechat-data-provider';
@@ -123,6 +123,7 @@ function MCPPanelContent() {
     }
 
     const serverStatus = connectionStatus?.[selectedServerNameForEditing];
+    const isConnected = serverStatus?.connectionState === 'connected';
 
     return (
       <div className="h-auto max-w-full space-y-4 overflow-x-hidden py-2">
@@ -159,6 +160,17 @@ function MCPPanelContent() {
             Object.keys(serverBeingEdited.config.customUserVars).length > 0
           }
         />
+        {serverStatus?.requiresOAuth && isConnected && (
+          <Button
+            className="w-full"
+            size="sm"
+            variant="destructive"
+            onClick={() => handleConfigRevoke(selectedServerNameForEditing)}
+          >
+            <Trash2 className="h-4 w-4" />
+            {localize('com_ui_oauth_revoke')}
+          </Button>
+        )}
       </div>
     );
   } else {

client/src/locales/en/translation.json

@@ -1046,6 +1046,7 @@
   "com_ui_oauth_error_title": "Authentication Failed",
   "com_ui_oauth_success_description": "Your authentication was successful. This window will close in",
   "com_ui_oauth_success_title": "Authentication Successful",
+  "com_ui_oauth_revoke": "Revoke",
   "com_ui_of": "of",
   "com_ui_off": "Off",
   "com_ui_offline": "Offline",