feat: Modularize event management system - 98.7% reduction in main file size

BREAKING CHANGES:
- Refactored monolithic manage.astro (7,623 lines) into modular architecture
- Original file backed up as manage-old.astro

NEW ARCHITECTURE:
✅ 5 Utility Libraries:
  - event-management.ts: Event data operations & formatting
  - ticket-management.ts: Ticket CRUD operations & sales data
  - seating-management.ts: Seating map management & layout generation
  - sales-analytics.ts: Sales metrics, reporting & data export
  - marketing-kit.ts: Marketing asset generation & social media

✅ 5 Shared Components:
  - TicketTypeModal.tsx: Reusable ticket type creation/editing
  - SeatingMapModal.tsx: Advanced seating map editor with drag-and-drop
  - EmbedCodeModal.tsx: Widget embedding with customization
  - OrdersTable.tsx: Comprehensive orders table with sorting/pagination
  - AttendeesTable.tsx: Attendee management with export capabilities

✅ 11 Tab Components:
  - TicketsTab.tsx: Ticket management with card/list views
  - VenueTab.tsx: Seating map management & venue configuration
  - OrdersTab.tsx: Sales data & order management
  - AttendeesTab.tsx: Attendee check-in & management
  - PresaleTab.tsx: Presale code generation & tracking
  - DiscountTab.tsx: Discount code management
  - AddonsTab.tsx: Add-on product management
  - PrintedTab.tsx: Printed ticket barcode management
  - SettingsTab.tsx: Event configuration & custom fields
  - MarketingTab.tsx: Marketing kit with social media templates
  - PromotionsTab.tsx: Campaign & promotion management

✅ 4 Infrastructure Components:
  - TabNavigation.tsx: Responsive tab navigation system
  - EventManagement.tsx: Main orchestration component
  - EventHeader.astro: Event information header
  - QuickStats.astro: Statistics dashboard

BENEFITS:
- 98.7% reduction in main file size (7,623 → ~100 lines)
- Dramatic improvement in maintainability and team collaboration
- Component-level testing now possible
- Reusable components across multiple features
- Lazy loading support for better performance
- Full TypeScript support with proper interfaces
- Separation of concerns: business logic separated from UI

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/pages/api/events/nearby.ts

@@ -0,0 +1,67 @@
+import type { APIRoute } from 'astro';
+import { trendingAnalyticsService } from '../../../lib/analytics';
+import { supabase } from '../../../lib/supabase';
+
+export const GET: APIRoute = async ({ request, url }) => {
+  try {
+    const searchParams = new URL(request.url).searchParams;
+    
+    // Get required location parameters
+    const latitude = searchParams.get('lat');
+    const longitude = searchParams.get('lng');
+    
+    if (!latitude || !longitude) {
+      return new Response(JSON.stringify({
+        success: false,
+        error: 'Latitude and longitude are required'
+      }), {
+        status: 400,
+        headers: {
+          'Content-Type': 'application/json'
+        }
+      });
+    }
+    
+    const radiusMiles = parseInt(searchParams.get('radius') || '25');
+    const limit = parseInt(searchParams.get('limit') || '10');
+    
+    // Get hot events in the area
+    const nearbyEvents = await trendingAnalyticsService.getHotEventsInArea(
+      parseFloat(latitude),
+      parseFloat(longitude),
+      radiusMiles,
+      limit
+    );
+    
+    return new Response(JSON.stringify({
+      success: true,
+      data: nearbyEvents,
+      meta: {
+        userLocation: {
+          latitude: parseFloat(latitude),
+          longitude: parseFloat(longitude),
+          radius: radiusMiles
+        },
+        count: nearbyEvents.length,
+        limit
+      }
+    }), {
+      status: 200,
+      headers: {
+        'Content-Type': 'application/json',
+        'Cache-Control': 'public, max-age=300' // 5 minutes
+      }
+    });
+  } catch (error) {
+    console.error('Error in nearby events API:', error);
+    return new Response(JSON.stringify({
+      success: false,
+      error: 'Failed to fetch nearby events'
+    }), {
+      status: 500,
+      headers: {
+        'Content-Type': 'application/json'
+      }
+    });
+  }
+};