fix clippy lints

turtle-lib/src/execution.rs

@@ -199,6 +199,7 @@ pub fn record_fill_vertices_after_movement(
 
 /// Execute a single turtle command, updating state and adding draw commands
 #[tracing::instrument]
+#[allow(clippy::too_many_lines)]
 pub fn execute_command(command: &TurtleCommand, state: &mut Turtle) {
     // Try to execute as side-effect-only command first
     if execute_command_side_effects(command, state) {
@@ -277,7 +278,7 @@ pub fn execute_command(command: &TurtleCommand, state: &mut Turtle) {
                             pen_width: state.params.pen_width,
                             start_position: state.params.position,
                             end_position: geom.position_at_angle(angle.to_radians()),
-                            start_heading: start_heading,
+                            start_heading,
                             contours: None,
                         },
                     });

turtle-lib/src/export.rs

@@ -9,6 +9,7 @@ pub enum ExportError {
     // Weitere Formate können ergänzt werden
 }
 
+#[derive(Clone, Copy, Debug)]
 pub enum DrawingFormat {
     #[cfg(feature = "svg")]
     Svg,
@@ -16,5 +17,10 @@ pub enum DrawingFormat {
 }
 
 pub trait DrawingExporter {
+    /// Export the drawing to the specified format and filename
+    ///
+    /// # Errors
+    ///
+    /// Returns an error if the export fails (e.g., file I/O error)
     fn export(&self, world: &TurtleWorld, filename: &str) -> Result<(), ExportError>;
 }

turtle-lib/src/lib.rs

@@ -97,6 +97,11 @@ pub struct TurtleApp {
 impl TurtleApp {
     /// Exportiere das aktuelle Drawing in das gewünschte Format
     #[allow(unused_variables)]
+    /// Export the current drawing to a file in the specified format
+    ///
+    /// # Errors
+    ///
+    /// Returns an error if the export fails (e.g., unsupported format, file I/O error)
     pub fn export_drawing(
         &self,
         filename: &str,