Major: Unified Activity System with Multi-VIP Support & Enhanced Search/Filtering

## Overview
Complete architectural overhaul merging dual event systems into a unified activity model
with multi-VIP support, enhanced search capabilities, and improved UX throughout.

## Database & Schema Changes

### Unified Activity Model (Breaking Change)
- Merged Event/EventTemplate/EventAttendance into single ScheduleEvent model
- Dropped duplicate tables: Event, EventAttendance, EventTemplate
- Single source of truth for all activities (transport, meals, meetings, events)
- Migration: 20260131180000_drop_duplicate_event_tables

### Multi-VIP Support (Breaking Change)
- Changed schema from single vipId to vipIds array (String[])
- Enables multiple VIPs per activity (ridesharing, group events)
- Migration: 20260131122613_multi_vip_support
- Updated all backend services to handle multi-VIP queries

### Seed Data Updates
- Rebuilt seed.ts with unified activity model
- Added multi-VIP rideshare examples (3 VIPs in SUV, 4 VIPs in van)
- Includes mix of transport + non-transport activities
- Balanced VIP test data (50% OFFICE_OF_DEVELOPMENT, 50% ADMIN)

## Backend Changes

### Services Cleanup
- Removed deprecated common-events endpoints
- Updated EventsService for multi-VIP support
- Enhanced VipsService with multi-VIP activity queries
- Updated DriversService, VehiclesService for unified model
- Added add-vips-to-event.dto for bulk VIP assignment

### Abilities & Permissions
- Updated ability.factory.ts: Event → ScheduleEvent subject
- Enhanced guards for unified activity permissions
- Maintained RBAC (Administrator, Coordinator, Driver roles)

### DTOs
- Updated create-event.dto: vipId → vipIds array
- Updated update-event.dto: vipId → vipIds array
- Added add-vips-to-event.dto for bulk operations
- Removed obsolete event-template DTOs

## Frontend Changes

### UI/UX Improvements

**Renamed "Schedule" → "Activities" Throughout**
- More intuitive terminology for coordinators
- Updated navigation, page titles, buttons
- Changed "Schedule Events" to "Activities" in Admin Tools

**Activities Page Enhancements**
- Added comprehensive search bar (searches: title, location, description, VIP names, driver, vehicle)
- Added sortable columns: Title, Type, VIPs, Start Time, Status
- Visual sort indicators (↑↓ arrows)
- Real-time result count when searching
- Empty state with helpful messaging

**Admin Tools Updates**
- Balanced VIP test data: 10 OFFICE_OF_DEVELOPMENT + 10 ADMIN
- More BSA-relevant organizations (Coca-Cola, AT&T, Walmart vs generic orgs)
- BSA leadership titles (National President, Chief Scout Executive, Regional Directors)
- Relabeled "Schedule Events" → "Activities"

### Component Updates

**EventList.tsx (Activities Page)**
- Added search state management with real-time filtering
- Implemented multi-field sorting with direction toggle
- Enhanced empty states for search + no data scenarios
- Filter tabs + search work together seamlessly

**VIPSchedule.tsx**
- Updated for multi-VIP schema (vipIds array)
- Shows complete itinerary timeline per VIP
- Displays all activities for selected VIP
- Groups by day with formatted dates

**EventForm.tsx**
- Updated to handle vipIds array instead of single vipId
- Multi-select VIP assignment
- Maintains backward compatibility

**AdminTools.tsx**
- New balanced VIP test data (10/10 split)
- BSA-context organizations
- Updated button labels ("Add Test Activities")

### Routing & Navigation
- Removed /common-events routes
- Updated navigation menu labels
- Maintained protected route structure
- Cleaner URL structure

## New Features

### Multi-VIP Activity Support
- Activities can have multiple VIPs (ridesharing, group events)
- Efficient seat utilization tracking (3/6 seats, 4/12 seats)
- Better coordination for shared transport

### Advanced Search & Filtering
- Full-text search across multiple fields
- Instant filtering as you type
- Search + type filters work together
- Clear visual feedback (result counts)

### Sortable Data Tables
- Click column headers to sort
- Toggle ascending/descending
- Visual indicators for active sort
- Sorts persist with search/filter

### Enhanced Admin Tools
- One-click test data generation
- Realistic BSA Jamboree scenario data
- Balanced department representation
- Complete 3-day itineraries per VIP

## Testing & Validation

### Playwright E2E Tests
- Added e2e/ directory structure
- playwright.config.ts configured
- PLAYWRIGHT_GUIDE.md documentation
- Ready for comprehensive E2E testing

### Manual Testing Performed
- Multi-VIP activity creation ✓
- Search across all fields ✓
- Column sorting (all fields) ✓
- Filter tabs + search combination ✓
- Admin Tools data generation ✓
- Database migrations ✓

## Breaking Changes & Migration

**Database Schema Changes**
1. Run migrations: `npx prisma migrate deploy`
2. Reseed database: `npx prisma db seed`
3. Existing data incompatible (dev environment - safe to nuke)

**API Changes**
- POST /events now requires vipIds array (not vipId string)
- GET /events returns vipIds array
- GET /vips/:id/schedule updated for multi-VIP
- Removed /common-events/* endpoints

**Frontend Type Changes**
- ScheduleEvent.vipIds: string[] (was vipId: string)
- EventFormData updated accordingly
- All pages handle array-based VIP assignment

## File Changes Summary

**Added:**
- backend/prisma/migrations/20260131180000_drop_duplicate_event_tables/
- backend/src/events/dto/add-vips-to-event.dto.ts
- frontend/src/components/InlineDriverSelector.tsx
- frontend/e2e/ (Playwright test structure)
- Documentation: NAVIGATION_UX_IMPROVEMENTS.md, PLAYWRIGHT_GUIDE.md

**Modified:**
- 30+ backend files (schema, services, DTOs, abilities)
- 20+ frontend files (pages, components, types)
- Admin tools, seed data, navigation

**Removed:**
- Event/EventAttendance/EventTemplate database tables
- Common events frontend pages
- Obsolete event template DTOs

## Next Steps

**Pending (Phase 3):**
- Activity Templates for bulk event creation
- Operations Dashboard (today's activities + conflicts)
- Complete workflow testing with real users
- Additional E2E test coverage

## Notes
- Development environment - no production data affected
- Database can be reset anytime: `npx prisma migrate reset`
- All servers tested and running successfully
- HMR working correctly for frontend changes

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

frontend/src/pages/Dashboard.tsx

@@ -1,19 +1,9 @@
 import { useQuery } from '@tanstack/react-query';
 import { api } from '@/lib/api';
-import { useAuth } from '@/contexts/AuthContext';
-import { Users, Car, Calendar, Plane, UserCheck, Clock } from 'lucide-react';
+import { Users, Car, Calendar, Plane, Clock } from 'lucide-react';
 import { VIP, Driver, ScheduleEvent } from '@/types';
 import { formatDateTime } from '@/lib/utils';
 
-interface User {
-  id: string;
-  email: string;
-  name: string | null;
-  role: string;
-  isApproved: boolean;
-  createdAt: string;
-}
-
 interface Flight {
   id: string;
   vipId: string;
@@ -34,9 +24,6 @@ interface Flight {
 }
 
 export function Dashboard() {
-  const { backendUser } = useAuth();
-  const isAdmin = backendUser?.role === 'ADMINISTRATOR';
-
   const { data: vips } = useQuery<VIP[]>({
     queryKey: ['vips'],
     queryFn: async () => {
@@ -61,15 +48,6 @@ export function Dashboard() {
     },
   });
 
-  const { data: users } = useQuery<User[]>({
-    queryKey: ['users'],
-    queryFn: async () => {
-      const { data } = await api.get('/users');
-      return data;
-    },
-    enabled: isAdmin,
-  });
-
   const { data: flights } = useQuery<Flight[]>({
     queryKey: ['flights'],
     queryFn: async () => {
@@ -93,8 +71,6 @@ export function Dashboard() {
     return flightDate >= today && flightDate < tomorrow;
   }).length || 0;
 
-  const pendingApprovals = users?.filter((u) => !u.isApproved).length || 0;
-
   const upcomingEvents = events
     ?.filter((e) => e.status === 'SCHEDULED' && new Date(e.startTime) >= today)
     .sort((a, b) => new Date(a.startTime).getTime() - new Date(b.startTime).getTime())
@@ -133,20 +109,14 @@ export function Dashboard() {
       icon: Plane,
       color: 'bg-indigo-500',
     },
-    ...(isAdmin ? [{
-      name: 'Pending Approvals',
-      value: pendingApprovals,
-      icon: UserCheck,
-      color: 'bg-yellow-500',
-    }] : []),
   ];
 
   return (
     <div>
-      <h1 className="text-3xl font-bold text-gray-900 mb-8">Dashboard</h1>
+      <h1 className="text-2xl sm:text-3xl font-bold text-gray-900 mb-6 md:mb-8">Dashboard</h1>
 
       {/* Stats Grid */}
-      <div className="grid grid-cols-1 gap-5 sm:grid-cols-2 lg:grid-cols-4 mb-8">
+      <div className="grid grid-cols-1 gap-4 sm:grid-cols-2 lg:grid-cols-4 mb-6 md:mb-8">
         {stats.map((stat) => {
           const Icon = stat.icon;
           return (
@@ -300,7 +270,9 @@ export function Dashboard() {
                       {event.title}
                     </h3>
                     <p className="text-sm text-gray-500">
-                      {event.vip?.name} • {event.driver?.name || 'No driver assigned'}
+                      {event.vips && event.vips.length > 0
+                        ? event.vips.map(vip => vip.name).join(', ')
+                        : 'No VIPs assigned'} • {event.driver?.name || 'No driver assigned'}
                     </p>
                     {event.location && (
                       <p className="text-xs text-gray-400 mt-1">{event.location}</p>