bugfix needed: Add automatic repetition loop detection and recovery

[resname]

Description

Problem

When using kimi-k2.6:cloud via Ollama Cloud, the model occasionally enters a token repetition loop (e.g., infinitely repeating a single character like "S" after starting a "Thinking:" trace). The user has to manually interrupt and retry.

Another example:

Plugins

Oh my openagent, superpowers

OpenCode version

1.14.30

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

Ubuntu 24.04

Terminal

Terminal inside vscode, but also in kubuntu terminal

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• Kimi K2.5 frequently gets in a reiteration loop #14343: Kimi K2.5 frequently gets in a reiteration loop (same model family, same repetition loop behavior, same OS)
• Loop in certain models #3743: Loop in certain models (mentions KIMI K2 loops via various providers)
• Repetitive tool-call loops with alibaba-coding-plan-cn/qwen3.6-plus #22142: Repetitive tool-call loops with alibaba-coding-plan-cn/qwen3.6-plus (similar looping behavior)

If your issue is the same, please consider adding a comment there rather than opening a new one. If it's distinct (e.g., specific to token-level character repetition rather than tool-call loops), please clarify the difference.