fix: address reviewer feedback — rename scroll field to bool, relocate static, drop env var

- Rename `ui_scroll_tick_count: u64` → `should_text_scroll: bool` across all 33
  call sites; `on_ui_scroll_tick` now assigns true/false instead of 0/1
- Remove two now-redundant comments from `test_on_ui_scroll_tick`
- Move `WHITESPACE_RE` static declaration below module imports in network/mod.rs
- Remove `MANAGARR_TICK_RATE_MS` env var and its parsing helpers; `recv()`-based
  blocking already brings idle CPU to near-0, and tuning tick rate silently
  stretches the poll cadence — keep `DEFAULT_TICK_RATE_MS` const only

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01C3FpbniZme9mJqgFkMVowz

src/ui/radarr_ui/blocklist/mod.rs

@@ -96,7 +96,7 @@ fn draw_blocklist_table(f: &mut Frame<'_>, app: &mut App<'_>, area: Rect) {
       movie.title.scroll_left_or_reset(
         get_width_from_percentage(area, 20),
         current_selection == *blocklist_item,
-        app.ui_scroll_tick_count == 0,
+        app.should_text_scroll,
       );
 
       let languages_string = languages

src/ui/radarr_ui/collections/collection_details_ui.rs

@@ -90,7 +90,7 @@ pub fn draw_collection_details(f: &mut Frame<'_>, app: &mut App<'_>, area: Rect)
     movie.title.scroll_left_or_reset(
       get_width_from_percentage(table_area, 20),
       current_selection == *movie,
-      app.ui_scroll_tick_count == 0,
+      app.should_text_scroll,
     );
     let (hours, minutes) = convert_runtime(movie.runtime);
     let imdb_rating = movie

src/ui/radarr_ui/collections/mod.rs

@@ -70,7 +70,7 @@ pub(super) fn draw_collections(f: &mut Frame<'_>, app: &mut App<'_>, area: Rect)
       collection.title.scroll_left_or_reset(
         get_width_from_percentage(area, 25),
         *collection == current_selection,
-        app.ui_scroll_tick_count == 0,
+        app.should_text_scroll,
       );
       let monitored = if collection.monitored { "🏷" } else { "" };
       let search_on_add = if collection.search_on_add {

src/ui/radarr_ui/downloads/mod.rs

@@ -87,7 +87,7 @@ fn draw_downloads(f: &mut Frame<'_>, app: &mut App<'_>, area: Rect) {
       output_path.as_ref().unwrap().scroll_left_or_reset(
         get_width_from_percentage(area, 18),
         current_selection == *download_record,
-        app.ui_scroll_tick_count == 0,
+        app.should_text_scroll,
       );
     }
 

src/ui/radarr_ui/history/mod.rs

@@ -61,7 +61,7 @@ fn draw_history_table(f: &mut Frame<'_>, app: &mut App<'_>, area: Rect) {
       source_title.scroll_left_or_reset(
         get_width_from_percentage(area, 40),
         current_selection == *history_item,
-        app.ui_scroll_tick_count == 0,
+        app.should_text_scroll,
       );
 
       Row::new(vec![

src/ui/radarr_ui/indexers/test_all_indexers_ui.rs

@@ -47,7 +47,7 @@ fn draw_test_all_indexers_test_results(f: &mut Frame<'_>, app: &mut App<'_>, are
     result.validation_failures.scroll_left_or_reset(
       get_width_from_percentage(area, 86),
       *result == current_selection,
-      app.ui_scroll_tick_count == 0,
+      app.should_text_scroll,
     );
     let pass_fail = if result.is_valid { "✔" } else { "❌" };
     let row = Row::new(vec![

src/ui/radarr_ui/library/add_movie_ui.rs

@@ -141,7 +141,7 @@ fn draw_add_movie_search(f: &mut Frame<'_>, app: &mut App<'_>, area: Rect) {
     movie.title.scroll_left_or_reset(
       get_width_from_percentage(area, 27),
       *movie == current_selection,
-      app.ui_scroll_tick_count == 0,
+      app.should_text_scroll,
     );
 
     Row::new(vec![

src/ui/radarr_ui/library/mod.rs

@@ -90,7 +90,7 @@ fn draw_library(f: &mut Frame<'_>, app: &mut App<'_>, area: Rect) {
       movie.title.scroll_left_or_reset(
         get_width_from_percentage(area, 27),
         *movie == current_selection,
-        app.ui_scroll_tick_count == 0,
+        app.should_text_scroll,
       );
       let monitored = if movie.monitored { "🏷" } else { "" };
       let studio = movie.studio.clone().unwrap_or_default();

src/ui/radarr_ui/library/movie_details_ui.rs

@@ -250,7 +250,7 @@ fn draw_movie_history(f: &mut Frame<'_>, app: &mut App<'_>, area: Rect) {
       movie_history_item.source_title.scroll_left_or_reset(
         get_width_from_percentage(area, 34),
         current_selection == *movie_history_item,
-        app.ui_scroll_tick_count == 0,
+        app.should_text_scroll,
       );
 
       Row::new(vec![
@@ -402,7 +402,7 @@ fn draw_movie_releases(f: &mut Frame<'_>, app: &mut App<'_>, area: Rect) {
         get_width_from_percentage(area, 30),
         current_selection == *release
           && current_route != ActiveRadarrBlock::ManualSearchConfirmPrompt.into(),
-        app.ui_scroll_tick_count == 0,
+        app.should_text_scroll,
       );
       let size = convert_to_gb(*size);
       let rejected_str = if *rejected { "⛔" } else { "" };