adapt worker

[fengju0213]

Summary

Replace eigent's full _process_task override with delegation to CAMEL's base SingleAgentWorker, which now handles unified streaming, execution context, and attempt tracking natively.

Changes

backend/app/utils/single_agent_worker.py (~340 → ~95 lines)

• Remove complete _process_task reimplementation (inline streaming consumption, usage extraction, attempt recording all deleted)
• Override _get_worker_agent to inject eigent-specific process_task_id
• _process_task now only sets _current_task_id and delegates to super()

backend/tests/app/utils/test_single_agent_worker.py (~686 → ~140 lines)

• Test eigent-specific behavior only: initialization, inheritance, process_task_id injection, delegation to base, cleanup on failure
• Streaming/context/attempt tests covered by CAMEL side

Closes #

Description

Testing Evidence (REQUIRED)

• I have included human-verified testing evidence in this PR.
• This PR includes frontend/UI changes, and I attached screenshot(s) or screen recording(s).
• No frontend/UI changes in this PR.

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Contribution Guidelines Acknowledgement

• I have read and agree to the Eigent Contribution Guideline

[fengju0213]

pending camel-ai/camel#3968