REFACTOR: daily data tracker

[narumiruna]

This pull request refactors the FeeBudget class to replace the State structure with a new DailyDataTracker utility class for better code organization and functionality. The changes also include updates to the corresponding test cases to align with the new structure.

Refactoring FeeBudget class:

• Replaced the State structure with the DailyDataTracker class for tracking daily fee budgets and accumulated fees. (pkg/strategy/common/fee_budget.go)
• Updated methods in FeeBudget to use DailyDataTracker for checking and resetting fee data. (pkg/strategy/common/fee_budget.go) [1] [2]

Test updates:

• Modified test cases to use DailyDataTracker instead of State for validating fee budget logic. (pkg/strategy/common/fee_budget_test.go)

New utility class:

• Introduced DailyDataTracker class in pkg/util/daily_data_tracker.go to encapsulate the logic for tracking and resetting daily data. (pkg/util/daily_data_tracker.go)