[Bug]: CoPaw Local本地模型调用，执行中断问题（疑似模型上下文长度设置问题）

版本：version 1.0.0.post1
操作系统：MacOS
安装方式：一键安装

问题：CoPaw Local本地下载了Qwen3.5-35B-A3B.gguf模型，可以正常调用。简短任务未出现执行中断，较复杂任务出现执行中断。疑似模型上下文长度设置问题。llamacpp没有找到“上下文长度设置”选项。

报错信息：
```
我来帮你全面查询硬件信息。让我从多个维度收集你的硬件详情。
AGENT_UNKNOWN_ERROR
Unknown agent error: APIError: Failed to parse input at pos 445: sysctl -n hw.model sysctl hw.memsize sysctl -n hw.ncpu sysctl -n hw.ncpuonline sysctl -n hw.physmem sysctl -n hw.l2cache sysctl -n hw.l3cache sysctl -n hw.byteorder sysctl -n hw.page_size sysctl -n hw.pagesize sysctl -n machdep.cpu_brand sysctl -n machdep.cpu.brand_string sysctl -n machdep.cpu.brand sysctl -n machdep.cpu.features sysctl -n machdep.cpu.extfeatures sysctl -n machdep.cpu.topology (Details: /var/folders/t_/fp040yyn7mqgxjg7gnbdzjnm0000gn/T/copaw_query_error_t69lselk.json)
```
报错日志：
```

(Details: /var/folders/t_/fp040yyn7mqgxjg7gnbdzjnm0000gn/T/copaw_query_error_t69lselk.json)
(Details: /var/folders/t_/fp040yyn7mqgxjg7gnbdzjnm0000gn/T/copaw_query_error_t69lselk.json)

INFO .copaw/venv/lib/python3.12/site-packages/copaw/app/channels/console/channel.py:404 | 2026-04-01 00:17:49 | console stream done: event_count=76 has_response=True

❌ [00:17:49] Error
Unknown agent error: APIError: Failed to parse input at pos 445:

sysctl -n hw.model

sysctl hw.memsize

sysctl -n hw.ncpu

sysctl -n hw.ncpuonline

sysctl -n hw.physmem

sysctl -n hw.l2cache

sysctl -n hw.l3cache

sysctl -n hw.byteorder

sysctl -n hw.page_size

sysctl -n hw.pagesize

sysctl -n machdep.cpu_brand

sysctl -n machdep.cpu.brand_string

sysctl -n machdep.cpu.brand

sysctl -n machdep.cpu.features

sysctl -n machdep.cpu.extfeatures

sysctl -n machdep.cpu.topology

(Details: /var/folders/t_/fp040yyn7mqgxjg7gnbdzjnm0000gn/T/copaw_query_error_t69lselk.json)
```