fix(model): preserve model UUID in runtime after update, fixing "No LLM model configured" error

[Copilot]

概述 / Overview

Saving a model's configuration via the UI caused subsequent pipeline runs to fail with RuntimeError: No LLM model configured for local-agent runner. Root cause: update_llm_model (and update_embedding_model) correctly strips uuid from model_data before the SQL UPDATE, but then passes that same uuid-less dict to construct the in-memory LLMModel entity — leaving model_entity.uuid = None in the runtime model list. Every subsequent get_model_by_uuid(uuid) call fails to match it, producing the warning LLM model {uuid} not found or not configured and ultimately crashing the pipeline.

Fix (pkg/api/http/service/model.py):

# Before — runtime entity gets uuid=None
runtime_llm_model = await self.ap.model_mgr.load_llm_model_with_provider(
    persistence_model.LLMModel(**model_data),
    runtime_provider,
)

# After — uuid explicitly restored from the URL parameter
runtime_llm_model = await self.ap.model_mgr.load_llm_model_with_provider(
    persistence_model.LLMModel(uuid=model_uuid, **model_data),
    runtime_provider,
)

Same fix applied to update_embedding_model.

更改前后对比截图 / Screenshots

修改前 / Before:

RuntimeError: No LLM model configured for local-agent runner after saving model config

修改后 / After:

Pipeline correctly resolves the model by UUID and runs normally

检查清单 / Checklist

PR 作者完成 / For PR author

请在方括号间写x以打勾 / Please tick the box with x

• 阅读仓库贡献指引了吗？ / Have you read the contribution guide?
• 与项目所有者沟通过了吗？ / Have you communicated with the project maintainer?
• 我确定已自行测试所作的更改，确保功能符合预期。 / I have tested the changes and ensured they work as expected.

项目维护者完成 / For project maintainer

• 相关 issues 链接了吗？ / Have you linked the related issues?
• 配置项写好了吗？迁移写好了吗？生效了吗？ / Have you written the configuration items? Have you written the migration? Has it taken effect?
• 依赖加到 pyproject.toml 和 core/bootutils/deps.py 了吗 / Have you added the dependencies to pyproject.toml and core/bootutils/deps.py?
• 文档编写了吗？ / Have you written the documentation?