fix(chat): When user reject executing command, it should not send messages to LLM

[Randall-Jiang]

Problem

Right now, when user reject executing command, chat would send the reject message to LLM and LLM would response. The loop would still continue

Solution

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[github-actions]

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[github-actions]

• This pull request modifies code in src/* but no tests were added/updated.
  • Confirm whether tests should be added or ensure the PR description explains why tests are not required.
• This pull request implements a feat or fix, so it must include a changelog entry (unless the fix is for an unreleased feature). Review the changelog guidelines.
  • Note: beta or "experiment" features that have active users should announce fixes in the changelog.
  • If this is not a feature or fix, use an appropriate type from the title guidelines. For example, telemetry-only changes should use the telemetry type.