feat(iios): projectors checkpoint the projection cursor (P9)

All 5 projectors (route/ai/inbox/calendar/raw-event) now advance their
IiosProjectionCursor after a freshly-claimed event is applied — split into
claim → apply → advance so a duplicate never double-counts and a throw leaves
the cursor untouched (event replays via the DLQ). Inbox's two topics get two
cursor rows. Proves KG-06 replay reproduction at the projection level.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/iios-service/src/adapters/adapters.spec.ts

@@ -2,6 +2,7 @@ import { describe, it, expect, beforeAll, afterAll, beforeEach } from 'vitest';
 import { PrismaClient } from '@prisma/client';
 import { DlqService } from '../outbox/dlq.service';
 import { resetDb } from '../test-utils/reset-db';
+import { ProjectionCursorService } from '../projection/projection-cursor.service';
 import { makeFakePorts } from '@insignia/iios-testkit';
 import { IIOS_EVENTS, type CloudEvent } from '@insignia/iios-contracts';
 import { signedFixture, emailFixture } from '@insignia/iios-adapter-sdk';
@@ -24,7 +25,7 @@ const SECRET = 'dev-adapter-secret'; // AdapterRegistry default
 const registry = () => new AdapterRegistry();
 const inbound = () => new InboundService(asService, registry());
 const projector = () =>
-  new RawEventProjector(asService, new OutboxBus(), new DlqService(asService), registry(), new IngestService(asService, makeFakePorts(), new ActorResolver(asService)));
+  new RawEventProjector(asService, new OutboxBus(), new DlqService(asService), registry(), new IngestService(asService, makeFakePorts(), new ActorResolver(asService)), new ProjectionCursorService(asService));
 
 async function rawReceivedEvents(): Promise<CloudEvent[]> {
   const rows = await prisma.iiosOutboxEvent.findMany({ where: { eventType: IIOS_EVENTS.rawReceived }, orderBy: { createdAt: 'asc' } });