初始化提交

backend/app/modules/safety/exceptions.py

@@ -0,0 +1,30 @@
+"""司命异常。错误码映射契约字典 API 标准错误码。"""
+
+from __future__ import annotations
+
+
+class SafetyError(Exception):
+    """司命决策异常基类。"""
+
+    def __init__(self, code: str, message: str) -> None:
+        super().__init__(message)
+        self.code = code
+        self.message = message
+
+    def __str__(self) -> str:
+        return self.message
+
+
+class PermissionDenied(SafetyError):
+    """动作被司命拒绝（映射 permission_denied）。"""
+
+    def __init__(self, message: str) -> None:
+        super().__init__("permission_denied", message)
+
+
+class RequiresConfirmation(SafetyError):
+    """高风险动作需用户确认（映射 requires_confirmation）。"""
+
+    def __init__(self, message: str, *, risk_level: str | None = None) -> None:
+        super().__init__("requires_confirmation", message)
+        self.risk_level = risk_level