[Feature Request] Enhance TaskResult Compatibility for Missing failed Field

[coolbeevip]

Required prerequisites

• I have searched the Issue Tracker and Discussions that this hasn't already been reported. (+1 or comment there if it has.)
• Consider asking first in a Discussion.

Motivation

When SingleAgentWorker generates response_content, TaskResult deserialization fails if the failed field is omitted by the underlying model (e.g., gpt-5-nano). This prevents task completion.

WARNING  camel.camel.societies.workforce.structured_output_handler:structured_output_handler.py:308 Validation error for TaskResult: 1 validation error for TaskResult
failed
  Field required [type=missing, input_value={'content': '0:00-2:00 ...的参与与努力。'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.11/v/missing. Attempting to fix common issues.

To ensure maximum compatibility and uninterrupted task execution, TaskResult deserialization should gracefully handle missing failed fields by defaulting them to False.

Solution

No response

Alternatives

No response

Additional context

No response