[Bug]: 多次出现AI调用工具时没有正确填入参数

## CoPaw Version

v.1.0.0.post3

## Description

Agent急着干活，调用工具都不带参数了，多次出现。
会跟基模有关吗？

**Related PR(s):** #(optional)

**Security considerations:** [If applicable, e.g. auth, env/config exposure]

## Component(s) Affected

- [ ] Core / Backend (app, agents, config, providers, utils, local_models)
- [ ] Console (frontend web UI)
- [ ] Channels (DingTalk, Feishu, QQ, Discord, iMessage, etc.)
- [ ] Skills
- [ ] CLI
- [ ] Documentation (website)
- [ ] Tests
- [ ] CI/CD
- [ ] Scripts / Deploy

## Environment

- **CoPaw version:** [e.g. 0.x.x or git commit]
- **OS:** [e.g. macOS 14, Ubuntu 22.04, Windows 11]
- **Install method:** [pip / one-line install / Docker / from source]
- **Python version (if applicable):** [e.g. 3.10]

## Steps to Reproduce

1.
2.
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## Actual vs Expected

- **Actual:**
- **Expected:**

## Logs / Screenshots

[Paste relevant log output or attach screenshots. Use code blocks for logs.]

```
(paste logs here)
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## Additional Notes

[Optional: workarounds, similar issues, etc.]

No source files, tests, reproduction steps, model, or environment are identified. Start by reproducing the missing-parameter tool call shown in the screenshots, then trace the agent tool-call path; done means repeated calls preserve their parameters and a regression test covers the failure.

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