Refactors calendar project structure and build configuration

Consolidates V2 codebase into main project directory
Updates build script to support simplified entry points
Removes redundant files and cleans up project organization

Simplifies module imports and entry points for calendar application

src/features/date/DateRenderer.ts

@@ -0,0 +1,68 @@
+import { IRenderer, IRenderContext } from '../../core/IGroupingRenderer';
+import { DateService } from '../../core/DateService';
+
+export class DateRenderer implements IRenderer {
+  readonly type = 'date';
+
+  constructor(private dateService: DateService) {}
+
+  render(context: IRenderContext): void {
+    const dates = context.filter['date'] || [];
+    const resourceIds = context.filter['resource'] || [];
+
+    // Check if date headers should be hidden (e.g., in day view)
+    const dateGrouping = context.groupings?.find(g => g.type === 'date');
+    const hideHeader = dateGrouping?.hideHeader === true;
+
+    // Render dates for HVER resource (eller 1 gang hvis ingen resources)
+    const iterations = resourceIds.length || 1;
+    let columnCount = 0;
+
+    for (let r = 0; r < iterations; r++) {
+      const resourceId = resourceIds[r]; // undefined hvis ingen resources
+
+      for (const dateStr of dates) {
+        const date = this.dateService.parseISO(dateStr);
+
+        // Build columnKey for uniform identification
+        const segments: Record<string, string> = { date: dateStr };
+        if (resourceId) segments.resource = resourceId;
+        const columnKey = this.dateService.buildColumnKey(segments);
+
+        // Header
+        const header = document.createElement('swp-day-header');
+        header.dataset.date = dateStr;
+        header.dataset.columnKey = columnKey;
+        if (resourceId) {
+          header.dataset.resourceId = resourceId;
+        }
+        if (hideHeader) {
+          header.dataset.hidden = 'true';
+        }
+        header.innerHTML = `
+          <swp-day-name>${this.dateService.getDayName(date, 'short')}</swp-day-name>
+          <swp-day-date>${date.getDate()}</swp-day-date>
+        `;
+        context.headerContainer.appendChild(header);
+
+        // Column
+        const column = document.createElement('swp-day-column');
+        column.dataset.date = dateStr;
+        column.dataset.columnKey = columnKey;
+        if (resourceId) {
+          column.dataset.resourceId = resourceId;
+        }
+        column.innerHTML = '<swp-events-layer></swp-events-layer>';
+        context.columnContainer.appendChild(column);
+
+        columnCount++;
+      }
+    }
+
+    // Set grid columns on container
+    const container = context.columnContainer.closest('swp-calendar-container');
+    if (container) {
+      (container as HTMLElement).style.setProperty('--grid-columns', String(columnCount));
+    }
+  }
+}

src/features/date/index.ts

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+export { DateRenderer } from './DateRenderer';