feat(task-018): add observability retry cancel and audit trail

apps/backend/src/application/site_config.py

@@ -6,6 +6,8 @@ from uuid import NAMESPACE_URL, UUID, uuid5
 
 from src.domain.contracts import (
     CurrentUser,
+    ScriptConfigVersionAuditEventListResponse,
+    ScriptConfigVersionAuditEventSummary,
     ScriptConfigVersionCreateRequest,
     ScriptConfigVersionResponse,
     ScriptConfigVersionStatus,
@@ -231,6 +233,49 @@ def list_script_config_versions(
     return [_script_version_summary(row) for row in rows]
 
 
+def list_script_config_audit_events(
+    repository: object,
+    site_id: UUID,
+) -> ScriptConfigVersionAuditEventListResponse:
+    repository.target_sites.get_by_id(site_id)
+    version_rows = repository.script_config_versions.list_for_site(site_id)
+    version_by_id = {str(row["id"]): row for row in version_rows}
+    events = repository.script_config_version_events.list_for_site(site_id)
+
+    summaries: list[ScriptConfigVersionAuditEventSummary] = []
+    for event in events:
+        version_row = version_by_id.get(str(event["version_id"]))
+        payload = event["payload"] if isinstance(event["payload"], dict) else {}
+        summaries.append(
+            ScriptConfigVersionAuditEventSummary(
+                id=event["id"],
+                target_site_id=event["target_site_id"],
+                version_id=event["version_id"],
+                event_type=event["event_type"],
+                actor_user_id=event["actor_user_id"],
+                payload=payload,
+                created_at=event["created_at"],
+                version=(
+                    int(version_row["version"])
+                    if version_row is not None and version_row.get("version") is not None
+                    else None
+                ),
+                diff=(
+                    version_row["diff"]
+                    if version_row is not None and isinstance(version_row.get("diff"), dict)
+                    else {}
+                ),
+                rollback_target_version_id=(
+                    version_row["rollback_target_version_id"]
+                    if version_row is not None
+                    else None
+                ),
+            )
+        )
+
+    return ScriptConfigVersionAuditEventListResponse(events=summaries)
+
+
 def _script_version_summary(row: dict[str, object]) -> ScriptConfigVersionSummary:
     return ScriptConfigVersionSummary(
         id=row["id"],