Refactors grid date handling and event rendering

Replaces getPeriodRange with getDisplayDates approach
Simplifies event rendering by using flexible date array
Updates event rendering to work with dynamic date lists

Improves code modularity and reduces complexity

src/managers/GridManager.ts

@@ -94,8 +94,8 @@ export class GridManager {
       this.currentDate
     );
 
-    // Calculate period range
-    const periodRange = this.getPeriodRange();
+    // Get display dates for current view
+    const dates = this.getDisplayDates();
 
     // Get layout config based on current view
     const layoutConfig = this.getLayoutConfig();
@@ -104,8 +104,7 @@ export class GridManager {
     eventBus.emit(CoreEvents.GRID_RENDERED, {
       container: this.container,
       currentDate: this.currentDate,
-      startDate: periodRange.startDate,
-      endDate: periodRange.endDate,
+      dates: dates,
       layoutConfig: layoutConfig,
       columnCount: layoutConfig.columnCount
     });
@@ -131,37 +130,6 @@ export class GridManager {
     }
   }
 
-  /**
-   * Get period range for current view
-   */
-  private getPeriodRange(): { startDate: Date; endDate: Date } {
-    switch (this.currentView) {
-      case 'week':
-        const weekStart = this.getISOWeekStart(this.currentDate);
-        const weekEnd = this.getWeekEnd(this.currentDate);
-        return {
-          startDate: weekStart,
-          endDate: weekEnd
-        };
-      case 'month':
-        return {
-          startDate: this.getMonthStart(this.currentDate),
-          endDate: this.getMonthEnd(this.currentDate)
-        };
-      case 'day':
-        return {
-          startDate: this.currentDate,
-          endDate: this.currentDate
-        };
-      default:
-        const defaultWeekStart = this.getISOWeekStart(this.currentDate);
-        const defaultWeekEnd = this.getWeekEnd(this.currentDate);
-        return {
-          startDate: defaultWeekStart,
-          endDate: defaultWeekEnd
-        };
-    }
-  }
 
   /**
    * Get layout config for current view

src/renderers/EventRendererManager.ts

@@ -91,12 +91,16 @@ export class EventRenderingService {
      * Handle GRID_RENDERED event - render events in the current grid
      */
     private handleGridRendered(event: CustomEvent): void {
-        const { container, startDate, endDate } = event.detail;
+        const { container, dates } = event.detail;
 
-        if (!container || !startDate || !endDate) {
+        if (!container || !dates || dates.length === 0) {
             return;
         }
 
+        // Calculate startDate and endDate from dates array
+        const startDate = dates[0];
+        const endDate = dates[dates.length - 1];
+
         this.renderEvents({
             container,
             startDate,

src/types/ManagerTypes.ts

@@ -40,7 +40,6 @@ export interface IEventRenderingService extends IManager {
 
 export interface IGridManager extends IManager {
   render(): Promise<void>;
-  getDisplayDates(): Date[];
 }
 
 export interface IScrollManager extends IManager {