feat(readarr): fetch Readarr author history and expose it on the CLI

Add the GetAuthorHistory event, backed by GET /history/author?authorId=N,
which returns a flat array of history records for a single author. The
fetcher mirrors the artist-history equivalent, sorting by id and carrying
the sort-prompt route guard so a refresh landing while the sort prompt is
open cannot clobber an in-progress sort selection.

Expose it as `readarr list author-history --author-id N`.

src/cli/readarr/list_command_handler_tests.rs

@@ -52,6 +52,39 @@ mod tests {
       assert_eq!(result.unwrap_err().kind(), ErrorKind::InvalidValue);
     }
 
+    #[test]
+    fn test_list_author_history_requires_author_id() {
+      let result =
+        Cli::command().try_get_matches_from(["managarr", "readarr", "list", "author-history"]);
+
+      assert_err!(&result);
+      assert_eq!(
+        result.unwrap_err().kind(),
+        ErrorKind::MissingRequiredArgument
+      );
+    }
+
+    #[test]
+    fn test_list_author_history_success() {
+      let expected_args = ReadarrListCommand::AuthorHistory { author_id: 1 };
+      let result = Cli::try_parse_from([
+        "managarr",
+        "readarr",
+        "list",
+        "author-history",
+        "--author-id",
+        "1",
+      ]);
+
+      assert_ok!(&result);
+
+      let Some(Command::Readarr(ReadarrCommand::List(author_command))) = result.unwrap().command
+      else {
+        panic!("Unexpected command type");
+      };
+      assert_eq!(author_command, expected_args);
+    }
+
     #[test]
     fn test_list_logs_default_values() {
       let expected_args = ReadarrListCommand::Logs {
@@ -111,6 +144,32 @@ mod tests {
       assert_ok!(&result);
     }
 
+    #[tokio::test]
+    async fn test_handle_list_author_history_command() {
+      let expected_author_id = 1;
+      let mut mock_network = MockNetworkTrait::new();
+      mock_network
+        .expect_handle_network_event()
+        .with(eq::<NetworkEvent>(
+          ReadarrEvent::GetAuthorHistory(expected_author_id).into(),
+        ))
+        .times(1)
+        .returning(|_| {
+          Ok(Serdeable::Readarr(ReadarrSerdeable::Value(
+            json!({"testResponse": "response"}),
+          )))
+        });
+      let app_arc = Arc::new(Mutex::new(App::test_default()));
+      let list_author_history_command = ReadarrListCommand::AuthorHistory { author_id: 1 };
+
+      let result =
+        ReadarrListCommandHandler::with(&app_arc, list_author_history_command, &mut mock_network)
+          .handle()
+          .await;
+
+      assert_ok!(&result);
+    }
+
     #[tokio::test]
     async fn test_handle_list_disk_space_command() {
       let mut mock_network = MockNetworkTrait::new();