structured logging around key workflows and docs for operational readiness

src/repo_registry/core/logging.py

@@ -0,0 +1,15 @@
+from __future__ import annotations
+
+import json
+import logging
+from typing import Any
+
+
+LOGGER_NAME = "repo_registry.operations"
+
+
+def log_operation(event: str, **fields: Any) -> None:
+    payload = {"event": event, **fields}
+    logging.getLogger(LOGGER_NAME).info(
+        json.dumps(payload, sort_keys=True, default=str)
+    )