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/managers/CalendarManager.ts

@@ -47,17 +47,10 @@ export class CalendarManager {
 
 
         try {
-            // Debug: Check calendar type
-            const calendarType = this.config.getCalendarMode();
-
             // Step 1: Load data
             await this.eventManager.loadData();
 
-            // Step 2: Pass data to GridManager and render grid structure  
-            if (calendarType === 'resource') {
-                const resourceData = this.eventManager.getResourceData();
-                this.gridManager.setResourceData(this.eventManager.getRawData() as import('../types/CalendarTypes').ResourceCalendarData);
-            }
+            // Step 2: Render grid structure
             await this.gridManager.render();
 
             this.scrollManager.initialize();