[Engram Cloud] Build docker image at realease

[limkinZero]

📋 Pre-flight Checks

• I have searched existing issues and this is not a duplicate
• I understand this issue needs status:approved before a PR can be opened

🔍 Problem Description

It would be good if, during the Engram release process, a Docker image for Engram Cloud were published.

💡 Proposed Solution

In this way, docker-compose would be independent and there would be no need to have the Engram source code on the VPS.

services:
  postgres:
    image: postgres:16-alpine
    container_name: engram-cloud-postgres
    environment:
      POSTGRES_USER: engram
      POSTGRES_PASSWORD: engram_dev
      POSTGRES_DB: engram_cloud
    ports:
      - "127.0.0.1:5433:5432"
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U engram -d engram_cloud"]
      interval: 5s
      timeout: 3s
      retries: 10
    volumes:
      - engram-cloud-pg:/var/lib/postgresql/data

  cloud:
    image: gentleman/engram-cloud:0.0.1
    container_name: engram-cloud
    depends_on:
      postgres:
        condition: service_healthy
    environment:
      ENGRAM_DATABASE_URL: postgres://engram:engram_dev@postgres:5432/engram_cloud?sslmode=disable
      ENGRAM_JWT_SECRET: engram-dev-jwt-secret-for-local-smoke-1234
      ENGRAM_CLOUD_INSECURE_NO_AUTH: "1"
      ENGRAM_CLOUD_ALLOWED_PROJECTS: smoke-project
      ENGRAM_CLOUD_HOST: 0.0.0.0
      ENGRAM_PORT: "18080"
    ports:
      - "127.0.0.1:18080:18080"
    command: ["cloud", "serve"]

volumes:
  engram-cloud-pg:

📦 Affected Area

Other

🔄 Alternatives Considered

No response

📎 Additional Context

No response