- Updated `user_document_controller.dart` to use DateTime for start and end dates.
- Enhanced `daily_task_controller.dart` with Rx fields for date range and added methods to update date ranges.
- Reverted API base URL in `api_endpoints.dart` to stage environment.
- Introduced `date_range_picker.dart` widget for reusable date selection.
- Integrated `DateRangePickerWidget` in attendance and daily task filter bottom sheets.
- Simplified date range selection logic in `attendance_filter_sheet.dart`, `daily_progress_report_filter.dart`, and `user_document_filter_bottom_sheet.dart`.
- Updated expense filter bottom sheet to utilize the new date range picker.
- Implemented ExpenseByStatusWidget to display expenses categorized by status.
- Added ExpenseReportResponse, ExpenseTypeReportResponse, and related models for handling expense data.
- Introduced Skeleton loaders for expense status and charts for better UI experience during data loading.
- Updated DashboardScreen to include the new ExpenseByStatusWidget and ensure proper integration with existing components.
- Implemented TimestampImageHelper to add timestamps to images.
- Updated AttendanceController to apply timestamps when capturing images.
- Enhanced AddExpenseController to process images with timestamps.
- Modified ReportTaskActionController and ReportTaskController to include timestamping for images.
- Updated UI components to show loading indicators while processing images.
- Refactored image picking logic to handle timestamping and loading states.
