Complete piglet implementation with animations and effects

- Implement complete animation system with 20+ motion effects
- Add 18+ easing functions (quad, cubic, elastic, back, bounce)
- Implement color system with palette and gradient support
- Add parser for durations, colors, and CSS gradients
- Create comprehensive test suite (14 tests passing)
- Add linting and formatting with clippy/rustfmt
- Support for figlet integration with custom fonts
- Terminal rendering with crossterm
- Fix all clippy warnings and lint issues

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

src/animation/mod.rs

@@ -1,7 +1,7 @@
-pub mod effects;
 pub mod easing;
-pub mod timeline;
+pub mod effects;
 pub mod renderer;
+pub mod timeline;
 
 use crate::color::ColorEngine;
 use crate::utils::{ascii::AsciiArt, terminal::TerminalManager};
@@ -27,22 +27,22 @@ impl AnimationEngine {
             color_engine: ColorEngine::new(),
         }
     }
-    
+
     pub fn with_effect(mut self, effect_name: &str) -> Result<Self> {
         self.effect = effects::get_effect(effect_name)?;
         Ok(self)
     }
-    
+
     pub fn with_easing(mut self, easing_name: &str) -> Result<Self> {
         self.easing = easing::get_easing_function(easing_name)?;
         Ok(self)
     }
-    
+
     pub fn with_color_engine(mut self, color_engine: ColorEngine) -> Self {
         self.color_engine = color_engine;
         self
     }
-    
+
     pub async fn run(&self, terminal: &mut TerminalManager) -> Result<()> {
         let renderer = renderer::Renderer::new(
             &self.ascii_art,
@@ -52,7 +52,7 @@ impl AnimationEngine {
             &*self.easing,
             &self.color_engine,
         );
-        
+
         renderer.render(terminal).await
     }
-}
+}