first commit

backend/app/application/observability/service.py

@@ -0,0 +1,31 @@
+from __future__ import annotations
+
+from app.domain.observability import AuditLogEntry, SystemEvent
+from app.repositories.native.audit_logs import AuditLogRepository
+from app.repositories.native.system_events import SystemEventRepository
+
+
+class ObservabilityService:
+    """Facade for audit and telemetry writes.
+
+    Keeping this behind one service lets us fan out later to:
+    - native PostgreSQL tables
+    - queue/stream pipelines
+    - external monitoring sinks
+    without changing runtime/admin services.
+    """
+
+    def __init__(
+        self,
+        audit_repository: AuditLogRepository | None = None,
+        system_event_repository: SystemEventRepository | None = None,
+    ) -> None:
+        self.audit_repository = audit_repository or AuditLogRepository()
+        self.system_event_repository = system_event_repository or SystemEventRepository()
+
+    async def record_audit(self, entry: AuditLogEntry) -> AuditLogEntry:
+        return await self.audit_repository.add(entry)
+
+    async def record_system_event(self, event: SystemEvent) -> SystemEvent:
+        return await self.system_event_repository.add(event)
+