Updates

backend/app/core/security_logging.py

@@ -0,0 +1,15 @@
+from __future__ import annotations
+
+import logging
+
+
+logger = logging.getLogger("data_entry_app.security")
+
+
+def log_security_event(event: str, **fields: object) -> None:
+    safe_fields = {
+        key: value
+        for key, value in fields.items()
+        if key not in {"password", "token", "cookie", "authorization"}
+    }
+    logger.info("%s | %s", event, safe_fields)