feat(models): 桌面端 pineagents 提供商动态拉取算力中心 admin 模型

- list_provider_info 对 pineagents 调 fetch_models()(server-core /v1/models=admin 模型), 成功替换其模型列表, 失败回退静态
- 桌面端模型源迁至算力中心(admin 模型), 不再展示硬编码 DEEPSEEK 4 个

src/pineagents/providers/provider_manager.py

@@ -1454,6 +1454,15 @@ class ProviderManager:  # pylint: disable=too-many-public-methods
         self.builtin_providers[provider.id] = provider
 
     async def list_provider_info(self) -> List[ProviderInfo]:
+        # PineAgents（算力中心）：动态拉取 admin 模型（server-core /v1/models），失败回退静态 DEEPSEEK_MODELS。
+        pine = self.builtin_providers.get("pineagents")
+        if pine is not None and hasattr(pine, "fetch_models"):
+            try:
+                fetched = await pine.fetch_models()
+                if fetched:
+                    pine.models = fetched
+            except Exception:  # noqa: BLE001
+                pass
         tasks = [
             provider.get_info() for provider in self.builtin_providers.values()
         ]