Add guest support for events and RSVP system

- Add guest settings to event creation with configurable max guests per person
- Implement guest selection in RSVP form when guests are permitted
- Update API endpoints to handle guest count in RSVP requests
- Extend event and RSVP types to support guest-related fields

server/api/events/[id]/rsvp.post.ts

@@ -85,6 +85,38 @@ export default defineEventHandler(async (event) => {
       }
     }
 
+    // Validate guest count if event allows guests
+    const extraGuests = parseInt((body as any).extra_guests || '0');
+    if (extraGuests > 0) {
+      if (eventDetails.guests_permitted !== 'true') {
+        throw createError({
+          statusCode: 400,
+          statusMessage: 'This event does not allow guests'
+        });
+      }
+      
+      const maxGuestsAllowed = parseInt(eventDetails.max_guests_permitted || '0');
+      if (extraGuests > maxGuestsAllowed) {
+        throw createError({
+          statusCode: 400,
+          statusMessage: `Maximum ${maxGuestsAllowed} guests allowed per person`
+        });
+      }
+    }
+
+    // Check event capacity including guests
+    if (eventDetails.max_attendees && body.rsvp_status === 'confirmed') {
+      const maxCapacity = parseInt(eventDetails.max_attendees);
+      const currentAttendees = parseInt(eventDetails.current_attendees || '0');
+      const totalRequested = 1 + extraGuests; // Member + guests
+      
+      if (currentAttendees + totalRequested > maxCapacity) {
+        // Auto-set to waitlist if over capacity
+        body.rsvp_status = 'waitlist';
+        console.log(`[RSVP] Event at capacity, placing on waitlist: ${currentAttendees} + ${totalRequested} > ${maxCapacity}`);
+      }
+    }
+
     // Create RSVP record
     const rsvpData = {
       record_type: 'rsvp',
@@ -95,6 +127,7 @@ export default defineEventHandler(async (event) => {
       payment_reference: paymentReference,
       attended: 'false',
       rsvp_notes: body.rsvp_notes || '',
+      extra_guests: extraGuests.toString(),
       is_member_pricing: isMemberPricing,
       created_at: new Date().toISOString(),
       updated_at: new Date().toISOString()