refactor: complete code efficiency pass (Issues #10, #14, #16)

Backend:
- Add Prisma soft-delete middleware for automatic deletedAt filtering (#10)
- Split 2758-line copilot.service.ts into focused sub-services (#14):
  - copilot-schedule.service.ts (schedule/event tools)
  - copilot-reports.service.ts (reporting/analytics tools)
  - copilot-fleet.service.ts (vehicle/driver tools)
  - copilot-vip.service.ts (VIP management tools)
  - copilot.service.ts now thin orchestrator
- Remove manual deletedAt: null from 50+ queries

Frontend:
- Create SortableHeader component for reusable table sorting (#16)
- Create useListPage hook for shared search/filter/sort state (#16)
- Update VipList, DriverList, EventList to use shared infrastructure

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/src/events/event-status.service.ts

@@ -86,7 +86,6 @@ export class EventStatusService implements OnModuleInit, OnModuleDestroy {
         startTime: { lte: twentyMinutesFromNow, gt: now },
         reminder20MinSent: false,
         driverId: { not: null },
-        deletedAt: null,
       },
       include: {
         driver: true,
@@ -110,7 +109,6 @@ export class EventStatusService implements OnModuleInit, OnModuleDestroy {
         startTime: { lte: fiveMinutesFromNow, gt: now },
         reminder5MinSent: false,
         driverId: { not: null },
-        deletedAt: null,
       },
       include: {
         driver: true,
@@ -218,7 +216,6 @@ Reply:
       where: {
         status: EventStatus.SCHEDULED,
         startTime: { lte: now },
-        deletedAt: null,
       },
       include: {
         driver: true,
@@ -264,7 +261,6 @@ Reply:
       where: {
         status: EventStatus.IN_PROGRESS,
         endTime: { lte: gracePeriodAgo },
-        deletedAt: null,
       },
       include: {
         driver: true,
@@ -347,7 +343,6 @@ Reply with 1, 2, or 3`;
     const driver = await this.prisma.driver.findFirst({
       where: {
         phone: { contains: driverPhone.replace(/\D/g, '').slice(-10) },
-        deletedAt: null,
       },
     });
 
@@ -360,7 +355,6 @@ Reply with 1, 2, or 3`;
       where: {
         driverId: driver.id,
         status: EventStatus.IN_PROGRESS,
-        deletedAt: null,
       },
       include: { vehicle: true },
     });

backend/src/events/events.service.ts

@@ -20,7 +20,6 @@ export class EventsService {
       select: { id: true, title: true, type: true, startTime: true, endTime: true },
     },
     childEvents: {
-      where: { deletedAt: null },
       select: { id: true, title: true, type: true },
     },
   } as const;
@@ -35,7 +34,6 @@ export class EventsService {
       const vips = await this.prisma.vIP.findMany({
         where: {
           id: { in: createEventDto.vipIds },
-          deletedAt: null,
         },
       });
 
@@ -90,7 +88,6 @@ export class EventsService {
 
   async findAll() {
     const events = await this.prisma.scheduleEvent.findMany({
-      where: { deletedAt: null },
       include: this.eventInclude,
       orderBy: { startTime: 'asc' },
     });
@@ -107,7 +104,6 @@ export class EventsService {
       const vips = await this.prisma.vIP.findMany({
         where: {
           id: { in: Array.from(allVipIds) },
-          deletedAt: null,
         },
       });
       vips.forEach((vip) => vipsMap.set(vip.id, vip));
@@ -129,7 +125,7 @@ export class EventsService {
 
   async findOne(id: string) {
     const event = await this.prisma.scheduleEvent.findFirst({
-      where: { id, deletedAt: null },
+      where: { id },
       include: this.eventInclude,
     });
 
@@ -148,7 +144,6 @@ export class EventsService {
       const vips = await this.prisma.vIP.findMany({
         where: {
           id: { in: updateEventDto.vipIds },
-          deletedAt: null,
         },
       });
 
@@ -264,7 +259,7 @@ export class EventsService {
    */
   private async checkVehicleCapacity(vehicleId: string, vipIds: string[]) {
     const vehicle = await this.prisma.vehicle.findFirst({
-      where: { id: vehicleId, deletedAt: null },
+      where: { id: vehicleId },
     });
 
     if (!vehicle) {
@@ -272,7 +267,7 @@ export class EventsService {
     }
 
     const vips = await this.prisma.vIP.findMany({
-      where: { id: { in: vipIds }, deletedAt: null },
+      where: { id: { in: vipIds } },
       select: { partySize: true },
     });
     const totalPeople = vips.reduce((sum, v) => sum + v.partySize, 0);
@@ -302,7 +297,6 @@ export class EventsService {
     return this.prisma.scheduleEvent.findMany({
       where: {
         driverId,
-        deletedAt: null,
         id: excludeEventId ? { not: excludeEventId } : undefined,
         OR: [
           {
@@ -343,7 +337,6 @@ export class EventsService {
     const vips = await this.prisma.vIP.findMany({
       where: {
         id: { in: event.vipIds },
-        deletedAt: null,
       },
     });