Scheduler: T1310544 — scrollTo does not take offset into account

[Tucchhaa]

No description provided.

[Copilot]

Pull request overview

This PR fixes a bug where the Scheduler's scrollTo method does not properly account for the viewOffset option. The fix modifies the scroll coordinate calculation logic to find the closest cell when the exact date is not found, and updates the scroll date validation to consider the view offset.

Changes:

• Added findClosest parameter to findGlobalCellPosition to find the closest cell when exact date match is not found
• Updated _isValidScrollDate to consider viewOffset when validating scroll dates
• Simplified _getScrollCoordinates by removing hours/minutes parameters and using the closest cell's data
• Added comprehensive test coverage for different offset scenarios (positive, negative, zero)

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
packages/testcafe-models/scheduler/index.ts	Added getCellDataAtViewportCenter() helper method for tests and refactored scrollTo() method
packages/devextreme/js/__internal/scheduler/workspaces/view_model/m_view_data_provider.ts	Added findClosest parameter to find closest cell, extracted getCellPosition helper, refactored date comparison logic
packages/devextreme/js/__internal/scheduler/workspaces/m_work_space.ts	Simplified _getScrollCoordinates signature, added viewOffset consideration in _isValidScrollDate()
e2e/testcafe-devextreme/tests/scheduler/common/scrollTo.ts	Added comprehensive test cases for scrollTo with different offset values