first commit

backend/app/repositories/native/audit_logs.py

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+from __future__ import annotations
+
+from collections.abc import Sequence
+
+from app.domain.observability import AuditLogEntry
+
+
+class AuditLogRepository:
+    """Temporary in-process audit repository.
+
+    This keeps the service and data shape stable while we decide the final
+    native table/migration layout. It should later be replaced by a PostgreSQL-
+    backed implementation without changing the application layer API.
+    """
+
+    _entries: list[AuditLogEntry] = []
+
+    async def add(self, entry: AuditLogEntry) -> AuditLogEntry:
+        self._entries.append(entry)
+        return entry
+
+    async def list_recent(self, limit: int = 100) -> Sequence[AuditLogEntry]:
+        return self._entries[-limit:]
+