index: Display a listing of the resource.

create: Show the form for creating a new resource.

store: Store a newly created resource in storage.

show: Display the specified resource.

edit: Show the form for editing the specified resource.

update: Reconstruct selected_days array from a leave request's date range.

destroy: Remove the specified resource from storage.

approve: Approve a leave request.

reject: Reject a leave request.

explanation: Display detailed balance explanation for a user.

bulkApprove: Bulk approve leave requests.

bulkReject: Bulk reject leave requests.

export: Export leave requests to Excel/CSV.