feat(backend): Kalender (Modul 25)

CalendarModule mit GET /calendar?from=&to=&apiaryId= aggregiert
Durchsichten, Aufgaben, Behandlungen, Fuetterungen, Ernten und
Koeniginnen-Zuweisungen zu einem einheitlichen Ereignisfeed. Rein
lesende Aggregation, kein neues Datenmodell.

ApiCore-Backend/test/calendar.e2e-spec.ts

@@ -0,0 +1,93 @@
+import { INestApplication } from '@nestjs/common';
+import * as bcrypt from 'bcryptjs';
+import request from 'supertest';
+import { App } from 'supertest/types';
+import { PrismaService } from '../src/prisma/prisma.service';
+import { createTestApp } from './utils/create-test-app';
+import { login } from './utils/api';
+
+interface CalendarEventBody {
+  type: string;
+  title: string;
+}
+
+describe('Calendar (e2e)', () => {
+  let app: INestApplication<App>;
+  let prisma: PrismaService;
+  const beekeeperEmail = `calendar-e2e-beekeeper-${Date.now()}@example.com`;
+  const password = 'SuperSecret123!';
+  let beekeeperId: string;
+  let beekeeperToken: string;
+  let apiaryId: string;
+  let colonyId: string;
+  let taskId: string;
+
+  beforeAll(async () => {
+    app = await createTestApp();
+    prisma = app.get(PrismaService);
+
+    const passwordHash = await bcrypt.hash(password, 12);
+    const beekeeper = await prisma.user.create({
+      data: {
+        email: beekeeperEmail,
+        passwordHash,
+        name: 'Beekeeper',
+        role: 'BEEKEEPER',
+      },
+    });
+    beekeeperId = beekeeper.id;
+    beekeeperToken = (await login(app, beekeeperEmail, password)).accessToken;
+
+    const apiary = await prisma.apiary.create({
+      data: { name: `Stand ${Date.now()}` },
+    });
+    apiaryId = apiary.id;
+    const colony = await prisma.colony.create({
+      data: {
+        code: `V-${Date.now()}`,
+        apiaryId,
+        colonyType: 'PRODUCTION_COLONY',
+      },
+    });
+    colonyId = colony.id;
+    const task = await prisma.task.create({
+      data: {
+        title: `Kalendertest ${Date.now()}`,
+        dueDate: new Date('2027-06-15'),
+        createdByUserId: beekeeperId,
+      },
+    });
+    taskId = task.id;
+  });
+
+  afterAll(async () => {
+    await prisma.task.deleteMany({ where: { id: taskId } });
+    await prisma.colony.deleteMany({ where: { id: colonyId } });
+    await prisma.apiary.deleteMany({ where: { id: apiaryId } });
+    await prisma.refreshToken.deleteMany({ where: { userId: beekeeperId } });
+    await prisma.auditLog.deleteMany({ where: { userId: beekeeperId } });
+    await prisma.user.deleteMany({ where: { id: beekeeperId } });
+    await app.close();
+  });
+
+  it('rejects the request when from/to are missing', () => {
+    return request(app.getHttpServer())
+      .get('/api/v1/calendar')
+      .set('Authorization', `Bearer ${beekeeperToken}`)
+      .expect(400);
+  });
+
+  it('returns events for a task due within the queried range', async () => {
+    const response = await request(app.getHttpServer())
+      .get('/api/v1/calendar?from=2027-06-01&to=2027-06-30')
+      .set('Authorization', `Bearer ${beekeeperToken}`)
+      .expect(200);
+    const events = response.body as CalendarEventBody[];
+    expect(
+      events.some(
+        (event) =>
+          event.type === 'TASK' && event.title.includes('Kalendertest'),
+      ),
+    ).toBe(true);
+  });
+});