modified: security policy

- Strengthened the default security policy
- Subdivided the risky levels high and middle into high+, high, middle+, and middle
- Added support for personal_cloud network mode
- Updated README.md

fixed: invalid security message
fixed: legacy - crash when security policy violation occurred

modified: default 'use_uv' is now True

comfyui_manager/data_models/generated_models.py

@@ -109,7 +109,9 @@ class SecurityLevel(str, Enum):
 
 class RiskLevel(str, Enum):
     block = "block"
+    high_p = "high+"
     high = "high"
+    middle_p = "middle+"
     middle = "middle"