feat: add self-enrolling Windows Agent package

backend/app/agent_enrollment/models.py

@@ -92,3 +92,7 @@ class AgentEnrollResponse(BaseModel):
     data: AgentEnrollCredentials
     meta: dict[str, object] = Field(default_factory=dict)
     error: None = None
+
+
+class AgentWindowsPackageRequest(AgentEnrollRequest):
+    """Short-lived token used to construct a Windows bootstrap package."""