feat: redesign spaceship with retro arcade aesthetic

Replace simple geometric spaceship with detailed design featuring metallic
hull with 3D gradient effect, glowing cyan cockpit, extended wings with red
tips, animated engine glow, and triple exhaust flames. Remove debug console
logs from movement and rendering code.

src/useGame/useGame.ts

@@ -21,16 +21,12 @@ export function useGame(
 
   // Game loop tick handler
   const handleGameLoopTick = (deltaTime: number, letters: any) => {
-    // If a letter just spawned, move ship to it
     if (letters.length > 0) {
       const letter = letters[0];
-      console.log('Setting target to:', letter.x);
       cursorManager.setTargetX(letter.x);
     }
     
-    // Move spaceship towards target
     cursorManager.moveTowardTarget(deltaTime);
-    
     renderBoardWrapped(letters);
   };