feat: 添加MinIO文件系统支持并优化外部连接器功能

- 添加MinIO用户文件系统配置选项(BEAVER_MINIO_ROOT_USER等)
- 更新外部连接器配置结构，包括BASE_URL和认证令牌设置
- 改进connector provider支持更多类型(official, feishu_bot等)
- 实现Mistral模型推理模式支持reasoning_effort参数
- 增强外部连接器策略配置和运行时配置管理
- 添加connector bridge事件验证和安全保护机制
- 优化任务路由逻辑，区分simple_chat和new_task场景
- 更新初始技能工具提示配置，分离authoring admin功能

app-instance/backend/beaver/engine/providers/litellm.py

@@ -185,6 +185,13 @@ class LiteLLMProvider(LLMProvider):
             kwargs["provider"] = provider_payload
 
     def _apply_thinking_mode(self, original_model: str, resolved_model: str, kwargs: dict[str, Any], enabled: bool | None) -> None:
+        if self._uses_mistral_reasoning_parser(original_model, resolved_model):
+            if enabled is not None:
+                extra_body = dict(kwargs.get("extra_body") or {})
+                extra_body["reasoning_effort"] = "high" if enabled else "none"
+                kwargs["extra_body"] = extra_body
+            return
+
         extra_body = dict(kwargs.get("extra_body") or {})
         chat_template_kwargs = dict(extra_body.get("chat_template_kwargs") or {})
         chat_template_kwargs["enable_thinking"] = False
@@ -192,6 +199,12 @@ class LiteLLMProvider(LLMProvider):
         extra_body["thinking"] = {"type": "disabled"}
         kwargs["extra_body"] = extra_body
 
+    def _uses_mistral_reasoning_parser(self, original_model: str, resolved_model: str) -> bool:
+        if self.provider_name != "vllm":
+            return False
+        model_names = f"{original_model} {resolved_model}".lower()
+        return "mistral" in model_names
+
     async def chat(
         self,
         messages: list[dict[str, Any]],