feat(readarr): fetch Readarr tasks and expose them on the CLI

Adds ReadarrEvent::GetTasks backed by get_readarr_tasks, populating the
Readarr tasks table, and surfaces it as 'readarr list tasks'.

src/cli/readarr/list_command_handler.rs

@@ -29,6 +29,8 @@ pub enum ReadarrListCommand {
     )]
     output_in_log_format: bool,
   },
+  #[command(about = "List all Readarr tasks")]
+  Tasks,
   #[command(about = "List all Readarr updates")]
   Updates,
 }
@@ -84,6 +86,13 @@ impl<'a, 'b> CliCommandHandler<'a, 'b, ReadarrListCommand> for ReadarrListComman
           serde_json::to_string_pretty(&logs)?
         }
       }
+      ReadarrListCommand::Tasks => {
+        let resp = self
+          .network
+          .handle_network_event(ReadarrEvent::GetTasks.into())
+          .await?;
+        serde_json::to_string_pretty(&resp)?
+      }
       ReadarrListCommand::Updates => {
         let resp = self
           .network

src/cli/readarr/list_command_handler_tests.rs

@@ -25,7 +25,7 @@ mod tests {
 
     #[rstest]
     fn test_list_commands_have_no_arg_requirements(
-      #[values("disk-space", "updates")] subcommand: &str,
+      #[values("disk-space", "tasks", "updates")] subcommand: &str,
     ) {
       let result = Cli::command().try_get_matches_from(["managarr", "readarr", "list", subcommand]);
 
@@ -161,6 +161,28 @@ mod tests {
       assert_str_eq!(result.unwrap(), "[\n  \"readarr log line\"\n]");
     }
 
+    #[tokio::test]
+    async fn test_handle_list_tasks_command() {
+      let mut mock_network = MockNetworkTrait::new();
+      mock_network
+        .expect_handle_network_event()
+        .with(eq::<NetworkEvent>(ReadarrEvent::GetTasks.into()))
+        .times(1)
+        .returning(|_| {
+          Ok(Serdeable::Readarr(ReadarrSerdeable::Value(
+            json!({"testResponse": "response"}),
+          )))
+        });
+      let app_arc = Arc::new(Mutex::new(App::test_default()));
+      let list_tasks_command = ReadarrListCommand::Tasks;
+
+      let result = ReadarrListCommandHandler::with(&app_arc, list_tasks_command, &mut mock_network)
+        .handle()
+        .await;
+
+      assert_ok!(&result);
+    }
+
     #[tokio::test]
     async fn test_handle_list_updates_command() {
       let mut mock_network = MockNetworkTrait::new();