Implement backend API and database services in Docker setup

- Added a new `api` service for the NestJS backend, including health checks and dependencies on PostgreSQL, Redis, and MinIO.
- Introduced PostgreSQL and Redis services with health checks and configurations for data persistence.
- Added MinIO for S3-compatible object storage and a one-shot service to initialize required buckets.
- Updated the Nginx configuration to proxy requests to the new backend API and MinIO storage.
- Enhanced the Dockerfile to support the new API environment variables and configurations.
- Updated the `package.json` and `package-lock.json` to include new dependencies for QR code generation and other utilities.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/test/mocks/subscription.ts

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+import { Subscription } from 'src/subscriptions/entities/subscription.entity';
+import { SubscriptionPeriod } from 'src/subscriptions/enums/periods.enum';
+import { PaymentStatus } from 'src/subscriptions/enums/status.enum';
+import { SubscriptionType } from 'src/subscriptions/enums/types.enum';
+import { createUser } from './user';
+import { User } from 'src/users/entities/user.entity';
+
+type SubscriptionParameters = {
+  type?: SubscriptionType;
+  period?: SubscriptionPeriod;
+  status?: PaymentStatus;
+  createdAt?: Date;
+  user?: User;
+};
+
+export const createSubscription = ({
+  type = 'enthusiast',
+  period = 'monthly',
+  status = 'succeeded',
+  createdAt = new Date(),
+  user,
+}: SubscriptionParameters): Subscription => ({
+  id: 'ab2b9b1b0-0b1b-4b1b-8b1b-2b1b3b1b4b1b5',
+  stripeId: 'sub_123',
+  status,
+  type,
+  period,
+  userId: 'a2b9b1b0-0b1b-4b1b-8b1b-2b1b3b1b4b1b5',
+  user,
+  createdAt,
+  flashEvents: [],
+});
+
+export const audienceMonthlyStripe = createSubscription({
+  type: 'enthusiast',
+  period: 'monthly',
+  user: createUser(),
+});
+
+export const rssAddonMonthlyStripe = createSubscription({
+  type: 'rss-addon',
+  period: 'monthly',
+});
+
+export const verificationAddonMonthlyStripe = createSubscription({
+  type: 'verification-addon',
+  period: 'monthly',
+});
+
+export const audienceMonthlyRejectedStripe = createSubscription({
+  type: 'enthusiast',
+  period: 'monthly',
+  status: 'rejected',
+});

backend/test/mocks/user.ts

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+import { User } from 'src/users/entities/user.entity';
+import {
+  audienceMonthlyStripe,
+  rssAddonMonthlyStripe,
+  verificationAddonMonthlyStripe,
+} from './subscription';
+import { Subscription } from 'src/subscriptions/entities/subscription.entity';
+import { Filmmaker } from 'src/filmmakers/entities/filmmaker.entity';
+
+interface UserParameters {
+  id?: string;
+  email?: string;
+  legalName?: string;
+  profilePictureUrl?: string;
+  subscriptions?: Subscription[];
+  filmmaker?: Filmmaker;
+}
+export const createUser = ({
+  id = 'a2b9b1b0-0b1b-4b1b-8b1b-2b1b3b1b4b1b5',
+  email = 'test@oneseventech.com',
+  legalName = 'Test User',
+  profilePictureUrl = 'https://example.com/profile.jpg',
+  subscriptions = [],
+  filmmaker,
+}: UserParameters = {}): User => {
+  return {
+    cognitoId: 'test-cognito-id',
+    id,
+    email,
+    legalName,
+    profilePictureUrl,
+    createdAt: new Date(),
+    updatedAt: new Date(),
+    subscriptions,
+    filmmaker,
+    seasonRents: [],
+    redemptions: [],
+  };
+};
+
+const createFilmmaker = (
+  id: string,
+  userId: string,
+  professionalName: string,
+  bio: string,
+): any => {
+  return {
+    id,
+    userId,
+    professionalName,
+    lightningAddress: '',
+    bio,
+    createdAt: new Date(),
+    updatedAt: new Date(),
+  };
+};
+
+export const audienceUserStripe: User = createUser({
+  subscriptions: [audienceMonthlyStripe],
+});
+
+export const proPlusUserStripe: User = createUser({
+  subscriptions: [rssAddonMonthlyStripe],
+  filmmaker: createFilmmaker(
+    'a2b9b1b0-0b1b-4b1b-8b1b-2b1b3b1b4b1b5',
+    'a2b9b1b0-0b1b-4b1b-8b1b-2b1b3b1b4b1b5',
+    'Test Filmmaker',
+    'Test bio',
+  ),
+});
+
+export const ultimateUserStripe: User = createUser({
+  subscriptions: [verificationAddonMonthlyStripe],
+  filmmaker: createFilmmaker(
+    'a2b9b1b0-0b1b-4b1b-8b1b-2b1b3b1b4b1b5',
+    'a2b9b1b0-0b1b-4b1b-8b1b-2b1b3b1b4b1b5',
+    'Test Filmmaker',
+    'Test bio',
+  ),
+});
+
+export const audienceUserNoSubscription: User = createUser();