refactor(phase1.4): clean up debug logging and finalize score calculation

- Remove all console.log debug statements
- Score calculation now working correctly:
  * Each food worth current level points
  * Level up happens AFTER food is eaten and scored
  * Example: food1(+1)=1pt, food2(+1, lvlup)=2pts, food3(+2)=4pts
- FOODS_PER_LEVEL = 2 (final production setting)
- Code is clean and production-ready

src/useGameStatus/useGameStatus.ts

@@ -92,8 +92,6 @@ export function useGameStatus(
 
               foodsEatenRef.current += 1;
 
-             console.log(`[FOOD] Eaten: ${foodsEatenRef.current}, Will Level Up: ${willLevelUp}, Current Level: ${levelRef.current}`);
-
               // Save the current level BEFORE any changes
               const pointsToAdd = levelRef.current;
               
@@ -104,15 +102,12 @@ export function useGameStatus(
                 setLevel(newLevel);
                 currentFpsRef.current = INITIAL_FPS + (newLevel - 1);
                 foodsEatenRef.current = 0;
-               console.log(`[LEVELUP] New Level: ${newLevel}`);
               }
 
               setScore((prev) => {
                 // Add points at CURRENT level
                 let newScore = prev + pointsToAdd;
 
-               console.log(`[SCORE] Adding ${pointsToAdd} points, Total: ${newScore}`);
-
                foodManagerRef.current.spawnFood(
                  snakeManagerRef.current.snakeBodyRef.current,
                  1