[BUG] HITL broken in 0.10.0 for Python agents: "Tool 'X' does not require confirmation." #2731

📋 Prerequisites

• I have searched the existing issues to avoid creating a duplicate
• By submitting this issue, you agree to follow our Code of Conduct
• I am using the latest version of the software
• I have tried to clear cache/cookies or used incognito mode (if ui-related)
• I can consistently reproduce this issue

🎯 Affected Service(s)

Controller Service

🚦 Impact/Severity

Minor inconvenience

🐛 Bug Description

Every human-in-the-loop interaction fails on resume in kagent 0.10.0 (both the built-in ask_user tool and any tool listed in tools_requiring_approval). The agent asks its question fine but answering it always fails with:

ValueError: Tool 'ask_user' does not require confirmation.

🔄 Steps To Reproduce

1. Deploy any Declarative python agent on kagent 0.10.0.
2. Ask it something that makes it call ask_user (e.g. "ask me a question").
3. The agent pauses and presents the question.
4. Answer it, from the kagent UI or any A2A client.
5. The run fails with Tool 'ask_user' does not require confirmation.

Identical failure for any tool in tools_requiring_approval, with that tool's name in the message.

🤔 Expected Behavior

The agent is able to ask the question, and when the user answers it it proceeds as normal.

📱 Actual Behavior

The agent asks the question, but any answer provided by the user results in:

ValueError: Tool 'ask_user' does not require confirmation.

💻 Environment

🔧 CLI Bug Report

No response

🔍 Additional Context

Seems related with #2465

📋 Logs

kagent_adk.kagent.adk._agent_executor - ERROR - Error handling A2A request: Tool 'ask_user' does not require confirmation.
Traceback (most recent call last):
  File "/.kagent/packages/kagent-adk/src/kagent/adk/_agent_executor.py", line 246, in _execute_impl
    await self._handle_request(context, event_queue, runner, run_args)
  File "/.kagent/packages/kagent-adk/src/kagent/adk/_agent_executor.py", line 604, in _handle_request
    async for adk_event in agen:
  ...
  File "/.kagent/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/base_llm_flow.py", line 1001, in _preprocess_async
    async for event in agen:
      yield event
  File "/.kagent/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/request_confirmation.py", line 336, in run_async
    await _resolve_confirmation_targets(
  File "/.kagent/.venv/lib/python3.13/site-packages/google/adk/flows/llm_flows/request_confirmation.py", line 184, in _resolve_confirmation_targets
    raise ValueError(
ValueError: Tool 'ask_user' does not require confirmation.

📷 Screenshots

No response

🙋 Are you willing to contribute?

• I am willing to submit a PR to fix this issue