fix(daemon): use canonical movie states in import

PRs #82 and #85 were each green pre-merge; #85 renamed movie states
(grabbed->downloading, imported->available) and #82's import path
still wrote the old names, so main failed the movies CHECK constraint.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

crates/arr-daemon/src/import.rs

@@ -405,7 +405,7 @@ async fn record_import(
     .await?;
     sqlx::query!(
         "UPDATE movies
-         SET    state = 'imported',
+         SET    state = 'available',
                 updated_at = strftime('%Y-%m-%dT%H:%M:%fZ', 'now')
          WHERE  id = ?",
         pending.movie_id
@@ -633,7 +633,7 @@ mod tests {
             .unwrap();
         sqlx::query(
             "INSERT INTO movies (tmdb_id, title, year, original_language, root_id, state)
-             SELECT 693134, 'Dune: Part Two', 2024, 'en', id, 'grabbed'
+             SELECT 693134, 'Dune: Part Two', 2024, 'en', id, 'downloading'
              FROM roots WHERE kind = 'movie' AND audience = 'main'",
         )
         .execute(database.pool())
@@ -728,7 +728,7 @@ mod tests {
             .fetch_one(h.database.pool())
             .await
             .unwrap();
-        assert_eq!(movie_state, "imported");
+        assert_eq!(movie_state, "available");
     }
 
     /// §5.3 through §5.7: Profile 5 is a hard fail — blacklisted, grab
@@ -786,7 +786,7 @@ mod tests {
             .execute(h.database.pool())
             .await
             .unwrap();
-        sqlx::query("UPDATE movies SET state = 'grabbed'")
+        sqlx::query("UPDATE movies SET state = 'downloading'")
             .execute(h.database.pool())
             .await
             .unwrap();