feat: restore legacy data and add typed task result views

backend/src/core/task_manager/manager.py

@@ -312,11 +312,23 @@ class TaskManager:
     # @PARAM:   offset (int) - Number of tasks to skip.
     # @PARAM:   status (Optional[TaskStatus]) - Filter by task status.
     # @RETURN:  List[Task] - List of tasks matching criteria.
-    def get_tasks(self, limit: int = 10, offset: int = 0, status: Optional[TaskStatus] = None) -> List[Task]:
+    def get_tasks(
+        self,
+        limit: int = 10,
+        offset: int = 0,
+        status: Optional[TaskStatus] = None,
+        plugin_ids: Optional[List[str]] = None,
+        completed_only: bool = False
+    ) -> List[Task]:
         with belief_scope("TaskManager.get_tasks"):
             tasks = list(self.tasks.values())
         if status:
             tasks = [t for t in tasks if t.status == status]
+        if plugin_ids:
+            plugin_id_set = set(plugin_ids)
+            tasks = [t for t in tasks if t.plugin_id in plugin_id_set]
+        if completed_only:
+            tasks = [t for t in tasks if t.status in [TaskStatus.SUCCESS, TaskStatus.FAILED]]
         # Sort by start_time descending (most recent first)
         tasks.sort(key=lambda t: t.started_at or datetime.min, reverse=True)
         return tasks[offset:offset + limit]
@@ -568,4 +580,4 @@ class TaskManager:
     # [/DEF:clear_tasks:Function]
 
 # [/DEF:TaskManager:Class]
-# [/DEF:TaskManagerModule:Module]
+# [/DEF:TaskManagerModule:Module]