- Added ClickUp OAuth authentication flow with new environment variables for client ID, client secret, and redirect URI.
- Introduced ClickUpHistoryConnector to manage OAuth-based authentication and token refresh for ClickUp API access.
- Created ClickUp connector routes for OAuth flow, including authorization and callback handling.
- Updated indexing logic to utilize the new ClickUpHistoryConnector, supporting both OAuth and legacy API token methods.
- Enhanced frontend components to reflect the new ClickUp integration and removed legacy API token forms.
