Implements event overlap rendering

Adds logic to handle event overlaps in the calendar view. It introduces two patterns: column sharing for events with the same start time (rendered using flexbox) and stacking for events with a >30 min difference (rendered with reduced width and z-index).

It also introduces deep linking to specific events via URL parameters.

src/managers/NavigationManager.ts

@@ -118,6 +118,53 @@ export class NavigationManager {
       
       this.navigateToDate(targetDate);
     });
+
+    // Listen for event navigation requests
+    this.eventBus.on(CoreEvents.NAVIGATE_TO_EVENT, (event: Event) => {
+      const customEvent = event as CustomEvent;
+      const { eventDate, eventStartTime } = customEvent.detail;
+      
+      if (!eventDate || !eventStartTime) {
+        console.warn('NavigationManager: Invalid event navigation data');
+        return;
+      }
+      
+      this.navigateToEventDate(eventDate, eventStartTime);
+    });
+  }
+
+  /**
+   * Navigate to specific event date and emit scroll event after navigation
+   */
+  private navigateToEventDate(eventDate: Date, eventStartTime: string): void {
+    const weekStart = DateCalculator.getISOWeekStart(eventDate);
+    this.targetWeek = new Date(weekStart);
+    
+    const currentTime = this.currentWeek.getTime();
+    const targetTime = weekStart.getTime();
+    
+    // Store event start time for scrolling after navigation
+    const scrollAfterNavigation = () => {
+      // Emit scroll request after navigation is complete
+      this.eventBus.emit('scroll:to-event-time', {
+        eventStartTime
+      });
+    };
+    
+    if (currentTime < targetTime) {
+      this.animationQueue++;
+      this.animateTransition('next', weekStart);
+      // Listen for navigation completion to trigger scroll
+      this.eventBus.once(CoreEvents.NAVIGATION_COMPLETED, scrollAfterNavigation);
+    } else if (currentTime > targetTime) {
+      this.animationQueue++;
+      this.animateTransition('prev', weekStart);
+      // Listen for navigation completion to trigger scroll
+      this.eventBus.once(CoreEvents.NAVIGATION_COMPLETED, scrollAfterNavigation);
+    } else {
+      // Already on correct week, just scroll
+      scrollAfterNavigation();
+    }
   }
 
   private navigateToPreviousWeek(): void {