feat: implement task dependencies with validation and update handling

frontend/src/api/generated/model/taskRead.ts

@@ -8,13 +8,16 @@ import type { TaskReadStatus } from "./taskReadStatus";
 
 export interface TaskRead {
   assigned_agent_id?: string | null;
+  blocked_by_task_ids?: string[];
   board_id: string | null;
   created_at: string;
   created_by_user_id: string | null;
+  depends_on_task_ids?: string[];
   description?: string | null;
   due_at?: string | null;
   id: string;
   in_progress_at: string | null;
+  is_blocked?: boolean;
   priority?: string;
   status?: TaskReadStatus;
   title: string;