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/admin/setup-super-admin.ts

@@ -0,0 +1,78 @@
+import type { APIRoute } from 'astro';
+import { requireAdmin } from '../../../lib/auth';
+import { supabase } from '../../../lib/supabase';
+
+export const POST: APIRoute = async ({ request }) => {
+  try {
+    // Verify admin authentication
+    const auth = await requireAdmin(request);
+    
+    const { email } = await request.json();
+    
+    if (!email) {
+      return new Response(JSON.stringify({
+        success: false,
+        error: 'Email is required'
+      }), {
+        status: 400,
+        headers: { 'Content-Type': 'application/json' }
+      });
+    }
+
+    // Check if user exists
+    const { data: existingUser } = await supabase
+      .from('users')
+      .select('id, email, role')
+      .eq('email', email)
+      .single();
+
+    if (!existingUser) {
+      return new Response(JSON.stringify({
+        success: false,
+        error: 'User not found. User must be registered first.'
+      }), {
+        status: 404,
+        headers: { 'Content-Type': 'application/json' }
+      });
+    }
+
+    // Make user admin using the database function
+    const { error } = await supabase.rpc('make_user_admin', {
+      user_email: email
+    });
+
+    if (error) {
+      console.error('Error making user admin:', error);
+      return new Response(JSON.stringify({
+        success: false,
+        error: 'Failed to make user admin'
+      }), {
+        status: 500,
+        headers: { 'Content-Type': 'application/json' }
+      });
+    }
+
+    return new Response(JSON.stringify({
+      success: true,
+      message: `Successfully made ${email} an admin`,
+      user: {
+        id: existingUser.id,
+        email: existingUser.email,
+        role: 'admin'
+      }
+    }), {
+      status: 200,
+      headers: { 'Content-Type': 'application/json' }
+    });
+
+  } catch (error) {
+    console.error('Setup super admin error:', error);
+    return new Response(JSON.stringify({
+      success: false,
+      error: 'Access denied or server error'
+    }), {
+      status: 500,
+      headers: { 'Content-Type': 'application/json' }
+    });
+  }
+};