fix: stabilize maintenance flow run/resume and procedural scrolling

backend/app/core/scheduler.py

@@ -47,6 +47,16 @@ async def _fire_maintenance_schedule(schedule_id: str) -> None:
                 logger.error(f"Tree {schedule.tree_id} not found for schedule {schedule_id}")
                 return
 
+            if tree.tree_type != "maintenance":
+                logger.warning(f"Skipping schedule {schedule_id}: tree {tree.id} is not a maintenance flow")
+                return
+
+            if not tree.is_active or tree.status == "draft":
+                logger.warning(
+                    f"Skipping schedule {schedule_id}: tree {tree.id} is inactive or draft"
+                )
+                return
+
             # Resolve targets
             targets: list[dict] = []
             if schedule.target_list_id:
@@ -61,7 +71,12 @@ async def _fire_maintenance_schedule(schedule_id: str) -> None:
                 targets = [{"label": "Unassigned"}]
 
             batch_id = uuid.uuid4()
-            tree_snapshot = tree.tree_structure
+            tree_snapshot = {
+                **tree.tree_structure,
+                "name": tree.name,
+                "description": tree.description,
+                "tree_type": tree.tree_type,
+            }
 
             sessions_to_add = []
             for target in targets: