v0.1.0: CRM/ERP 系统内测版本 - 安全加固完成

- Docker bridge 网络隔离（8000 端口封死）
- Gunicorn 4 Worker 多进程
- Alembic 数据库迁移基线
- 日志轮转 20m×3
- JWT 密钥 + DB 密码 + CORS 收紧
- 3-2-1 备份链路（NAS + R740-B 冷备）
- 连接池 pool_pre_ping + pool_recycle=3600

server/venv/lib/python3.12/site-packages/openpyxl/compat/strings.py

@@ -0,0 +1,25 @@
+# Copyright (c) 2010-2024 openpyxl
+
+from datetime import datetime
+from math import isnan, isinf
+import sys
+
+VER = sys.version_info
+
+from .numbers import NUMERIC_TYPES
+
+
+def safe_string(value):
+    """Safely and consistently format numeric values"""
+    if isinstance(value, NUMERIC_TYPES):
+        if isnan(value) or isinf(value):
+            value = ""
+        else:
+            value = "%.16g" % value
+    elif value is None:
+        value = "none"
+    elif isinstance(value, datetime):
+        value = value.isoformat()
+    elif not isinstance(value, str):
+        value = str(value)
+    return value