Add task management: aggregated Tasks view (list + calendar) with inline due/priority, check off, set from row, and drag-to-reschedule (#62)

src-tauri/src/lib.rs

@@ -122,6 +122,10 @@ pub fn run() {
             commands::get_all_tags,
             commands::get_all_note_titles,
             commands::get_graph_data,
+            commands::get_tasks,
+            commands::set_task_done,
+            commands::set_task_priority,
+            commands::set_task_due,
             commands::search_notes,
             commands::reindex,
             commands::get_trash,