Calendar/src/core/IGridConfig.ts

export interface IGridConfig {
  hourHeight: number;      // pixels per hour
  dayStartHour: number;    // e.g. 6
  dayEndHour: number;      // e.g. 18
  snapInterval: number;    // minutes, e.g. 15
  gridStartThresholdMinutes?: number;  // threshold for GRID grouping (default 10)
}