feat: T4 wave 3 - notifications per user, suggestions API, varroa bands, split/queen events

- Schema III: per-user notifications (broadcast fan-out migration,
  category, link, requiredPermissions filter), notification preferences
  and settings endpoints, calendar withdrawal switch, occupiedFrames
- Suggestions API: list/summary with permission visibility and paging,
  accept/dismiss/reopen incl. bulk, SuggestionView on all responses
- Varroa traffic light by season and method, young colonies, treatment
  effect window, sample-based percentage; shared withdrawal-window helper
  on Berlin calendar days; GET /varroa-measurements/thresholds
- ColonySplit and QueenAssigned domain events with calendar and webhook
  handlers
- Outbox claims compare against now() rounded to timestamp(3); fixes the
  flaky e2e claims of rows written with SQL now()

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

ApiCore-Backend/src/webhooks/webhook-delivery.worker.spec.ts

@@ -188,7 +188,7 @@ describe('WebhookDeliveryWorker', () => {
       `UPDATE "WebhookDelivery" SET "status" = 'PROCESSING', "claimedAt" = now()`,
     );
     expect(text(claim)).toContain(
-      `WHERE "status" = 'PENDING' AND "availableAt" <= now()`,
+      `WHERE "status" = 'PENDING' AND "availableAt" <= CAST(now() AS timestamp(3))`,
     );
     expect(text(claim)).toContain(
       'ORDER BY "createdAt" LIMIT ? FOR UPDATE SKIP LOCKED',
@@ -201,7 +201,7 @@ describe('WebhookDeliveryWorker', () => {
 
     const claim = db.claimQuery();
     expect(text(claim)).toContain(
-      `"availableAt" <= now() AND "subscriptionId" = ANY(?) ORDER BY`,
+      `"availableAt" <= CAST(now() AS timestamp(3)) AND "subscriptionId" = ANY(?) ORDER BY`,
     );
     expect(claim.values).toEqual([['wh-1', 'wh-2'], 50]);
   });

ApiCore-Backend/src/webhooks/webhook.handlers.spec.ts

@@ -18,6 +18,7 @@ type RecordModel =
   | 'feeding'
   | 'harvest'
   | 'honeyBatch'
+  | 'queen'
   | 'task';
 
 const RECORD_MODELS: readonly RecordModel[] = [
@@ -27,6 +28,7 @@ const RECORD_MODELS: readonly RecordModel[] = [
   'feeding',
   'harvest',
   'honeyBatch',
+  'queen',
   'task',
 ];
 
@@ -79,6 +81,7 @@ describe('WebhookEventHandlers', () => {
       StockChanged: 'stock.changed',
       TaskCreated: 'task.created',
       TaskCompleted: 'task.completed',
+      QueenAssigned: 'queen.replaced',
     });
   });
 
@@ -156,6 +159,27 @@ describe('WebhookEventHandlers', () => {
     );
   });
 
+  it('QueenAssigned forwards queen.replaced with the queen', async () => {
+    const queen = { id: 'q1', code: 'Q-001' };
+    tx.queen.findUnique.mockResolvedValueOnce(queen);
+
+    await forward(
+      envelope('QueenAssigned', 'q1', {
+        colonyId: 'c1',
+        historyId: 'h1',
+        assignedOn: '2026-10-14',
+        previousColonyId: null,
+      }),
+    );
+
+    expect(tx.queen.findUnique).toHaveBeenCalledWith({ where: { id: 'q1' } });
+    expect(webhooks.enqueueDeliveries).toHaveBeenCalledWith(
+      tx,
+      'queen.replaced',
+      queen,
+    );
+  });
+
   it('enqueues harvest.created with the harvest and its colonies', async () => {
     const harvest = {
       id: 'h1',

ApiCore-Backend/src/webhooks/webhook.handlers.ts

@@ -23,6 +23,7 @@ export const DOMAIN_EVENT_WEBHOOKS: Readonly<
   StockChanged: 'stock.changed',
   TaskCreated: 'task.created',
   TaskCompleted: 'task.completed',
+  QueenAssigned: 'queen.replaced',
 });
 
 /**
@@ -92,6 +93,8 @@ async function webhookData(
     case 'TaskCreated':
     case 'TaskCompleted':
       return tx.task.findUnique(byAggregate);
+    case 'QueenAssigned':
+      return tx.queen.findUnique(byAggregate);
     default:
       return null;
   }