fix(radarr): model the download status as a DownloadStatus enum

Radarr was the only tree still holding DownloadRecord.status as a bare
String and comparing it against literals. It now carries its own
DownloadStatus enum, shaped exactly like the Sonarr, Lidarr and Readarr
copies, and is guarded with from_json_or_default so an unrecognised
status degrades to Unknown instead of failing the whole queue fetch.

The row-style decorator and get_movie_status compare against the enum
variants. The status cell is never rendered in the Radarr tree, so no
snapshot changes; the CLI JSON output is unchanged for every real value
since the enum serializes to the same camelCase strings.

src/ui/radarr_ui/mod.rs

@@ -1,7 +1,7 @@
 use crate::app::App;
 use crate::logos::RADARR_LOGO;
 use crate::models::Route;
-use crate::models::radarr_models::{DownloadRecord, Movie};
+use crate::models::radarr_models::{DownloadRecord, DownloadStatus, Movie};
 use crate::models::servarr_data::radarr::radarr_data::RadarrData;
 use crate::models::servarr_models::{DiskSpace, RootFolder};
 use crate::ui::DrawUi;
@@ -230,11 +230,11 @@ fn decorate_with_row_style<'a>(
       .iter()
       .find(|&download| download.movie_id == movie.id)
     {
-      if download.status == "downloading" {
+      if download.status == DownloadStatus::Downloading {
         return row.downloading();
       }
 
-      if download.status == "completed" {
+      if download.status == DownloadStatus::Completed {
         return row.awaiting_import();
       }
     }

src/ui/radarr_ui/radarr_ui_tests.rs

@@ -1,6 +1,6 @@
 #[cfg(test)]
 mod tests {
-  use crate::models::radarr_models::{DownloadRecord, Movie};
+  use crate::models::radarr_models::{DownloadRecord, DownloadStatus, Movie};
   use pretty_assertions::assert_eq;
   use ratatui::widgets::{Cell, Row};
   use rstest::rstest;
@@ -50,8 +50,20 @@ mod tests {
   }
 
   #[rstest]
-  #[case(false, Some("downloading"), false, "", RowStyle::Downloading)]
-  #[case(false, Some("completed"), false, "", RowStyle::AwaitingImport)]
+  #[case(
+    false,
+    Some(DownloadStatus::Downloading),
+    false,
+    "",
+    RowStyle::Downloading
+  )]
+  #[case(
+    false,
+    Some(DownloadStatus::Completed),
+    false,
+    "",
+    RowStyle::AwaitingImport
+  )]
   #[case(false, None, false, "", RowStyle::UnmonitoredMissing)]
   #[case(false, None, true, "", RowStyle::Unreleased)]
   #[case(false, None, true, "released", RowStyle::Missing)]
@@ -59,7 +71,7 @@ mod tests {
   #[case(true, None, true, "", RowStyle::Downloaded)]
   fn test_decorate_with_row_style(
     #[case] has_file: bool,
-    #[case] download_status: Option<&str>,
+    #[case] download_status: Option<DownloadStatus>,
     #[case] is_monitored: bool,
     #[case] movie_status: String,
     #[case] expected_style: RowStyle,
@@ -67,7 +79,7 @@ mod tests {
     let downloads_vec = if let Some(download_status) = download_status {
       vec![DownloadRecord {
         movie_id: 1,
-        status: download_status.to_owned(),
+        status: download_status,
         ..DownloadRecord::default()
       }]
     } else {