fix(ci): Resolve clippy warnings for CI pipeline

- Add Default impl for AnimatorState (new_without_default)
- Fix needless late initialization in tray.rs
- Collapse else-if in setup_aura.rs
- Fix mut_range_bound in anime-led-scan example

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

asusd/src/aura_laptop/animator.rs

@@ -27,6 +27,12 @@ pub struct AnimatorState {
     pub running: Arc<AtomicBool>,
 }
 
+impl Default for AnimatorState {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl AnimatorState {
     pub fn new() -> Self {
         Self {