Previous fix created a JWT OAuth client for all tests, which broke the
regular OAuth server (port 8001) that expects opaque tokens.
This commit:
1. Reverts shared_oauth_client_credentials to use regular OAuth (opaque tokens)
2. Creates new shared_jwt_oauth_client_credentials for JWT OAuth clients
3. Creates new playwright_oauth_token_jwt fixture using JWT credentials
4. Updates nc_mcp_oauth_jwt_client to use JWT token fixture
This ensures:
- Regular OAuth tests (port 8001) use opaque tokens
- JWT OAuth tests (port 8002) use JWT tokens with embedded scopes
Fixes remaining CI failure in test_mcp_oauth_server_connection
Chris Coutinho
2c35e07675