Fixing builds and workflows

src/app.rs

@@ -48,6 +48,12 @@ pub struct App {
     pub panel: PanelState,
 }
 
+impl Default for App {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl App {
     pub fn new() -> Self {
         let variables = Arc::new(Mutex::new(HashMap::new()));

src/engine/audio.rs

@@ -16,6 +16,12 @@ pub struct ScopeBuffer {
     peak_right: AtomicU32,
 }
 
+impl Default for ScopeBuffer {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl ScopeBuffer {
     pub fn new() -> Self {
         Self {
@@ -64,6 +70,12 @@ pub struct SpectrumBuffer {
     pub bands: [AtomicU32; 32],
 }
 
+impl Default for SpectrumBuffer {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl SpectrumBuffer {
     pub fn new() -> Self {
         Self {

src/engine/mod.rs

@@ -2,9 +2,9 @@ mod audio;
 mod link;
 pub mod sequencer;
 
-pub use audio::{build_stream, AnalysisHandle, AudioStreamConfig, ScopeBuffer, SpectrumBuffer};
+pub use audio::{build_stream, AudioStreamConfig, ScopeBuffer, SpectrumBuffer};
 pub use link::LinkState;
 pub use sequencer::{
     spawn_sequencer, AudioCommand, PatternChange, PatternSnapshot, SeqCommand, SequencerConfig,
-    SequencerHandle, SequencerSnapshot, StepSnapshot,
+    SequencerSnapshot, StepSnapshot,
 };

src/views/help_view.rs

@@ -265,7 +265,7 @@ fn wrapped_line_count(line: &RLine, width: usize) -> usize {
     if char_count == 0 || width == 0 {
         1
     } else {
-        (char_count + width - 1) / width
+        char_count.div_ceil(width)
     }
 }
 
@@ -392,9 +392,9 @@ fn preprocess_markdown(md: &str) -> String {
 
 fn convert_dash_lists(line: &str) -> String {
     let trimmed = line.trim_start();
-    if trimmed.starts_with("- ") {
+    if let Some(rest) = trimmed.strip_prefix("- ") {
         let indent = line.len() - trimmed.len();
-        format!("{}* {}", " ".repeat(indent), &trimmed[2..])
+        format!("{}* {}", " ".repeat(indent), rest)
     } else {
         line.to_string()
     }
@@ -487,7 +487,7 @@ fn render_table_row(row: TableRow, row_idx: usize, col_widths: &[usize]) -> RLin
     let is_header = row_idx == 0;
     let bg = if is_header {
         theme.ui.surface
-    } else if row_idx % 2 == 0 {
+    } else if row_idx.is_multiple_of(2) {
         theme.table.row_even
     } else {
         theme.table.row_odd