Remove resource calendar mode support

Simplifies calendar configuration and removes resource-specific code paths

Eliminates complexity around resource-based calendar rendering by:
- Removing ResourceCalendarData type
- Removing resource-specific renderers and managers
- Streamlining event and grid management logic
- Consolidating to single date-based calendar implementation

src/renderers/ColumnRenderer.ts

@@ -1,7 +1,6 @@
 // Column rendering strategy interface and implementations
 
 import { CalendarConfig } from '../core/CalendarConfig';
-import { ResourceCalendarData } from '../types/CalendarTypes';
 import { DateService } from '../utils/DateService';
 import { WorkHoursManager } from '../managers/WorkHoursManager';
 
@@ -18,7 +17,6 @@ export interface ColumnRenderer {
 export interface ColumnRenderContext {
   currentWeek: Date;
   config: CalendarConfig;
-  resourceData?: ResourceCalendarData | null;
 }
 
 /**
@@ -80,29 +78,3 @@ export class DateColumnRenderer implements ColumnRenderer {
   }
 
 }
-
-/**
- * Resource-based column renderer
- */
-export class ResourceColumnRenderer implements ColumnRenderer {
-  render(columnContainer: HTMLElement, context: ColumnRenderContext): void {
-    const { resourceData } = context;
-    
-    if (!resourceData) {
-      return;
-    }
-
-
-    resourceData.resources.forEach((resource) => {
-      const column = document.createElement('swp-resource-column');
-      (column as any).dataset.resource = resource.name;
-      (column as any).dataset.employeeId = resource.employeeId;
-      (column as any).dataset.date = resourceData.date;
-      
-      const eventsLayer = document.createElement('swp-events-layer');
-      column.appendChild(eventsLayer);
-      
-      columnContainer.appendChild(column);
-    });
-  }
-}