Update environment variables and dependencies in Docker Compose for production

- Replace `UNIT_SOURCE` with `APP_ENV` variable.
- Add `app` and `captcha-app` as dependencies in relevant services.

docker-compose-prod_docker-hub.yml

@@ -13,7 +13,7 @@ services:
     env_file: app/.env
     environment:
       CONTAINER_ROLE: app
-      UNIT_SOURCE: "172.16.0.0/12"
+      APP_ENV: production
     volumes:
       - ./app/storage/app:/var/www/html/storage/app
       - ./app/storage/logs:/var/www/html/storage/logs
@@ -24,6 +24,7 @@ services:
     image: docker.mdhub.kor-elf.net/kor-elf/my-projects-website:0.6.0 # MDHub
     #  restart: always
     depends_on:
+      - app
       - db
       - app-redis
     environment:
@@ -39,6 +40,7 @@ services:
     image: docker.mdhub.kor-elf.net/kor-elf/my-projects-website:0.6.0 # MDHub
     #  restart: always
     depends_on:
+      - app
       - db
       - app-redis
     environment:
@@ -78,6 +80,7 @@ services:
     image: korelf/service-captcha:0.8.2
     #  restart: always
     depends_on:
+      - captcha-app
       - db
       - captcha-redis
     environment:
@@ -87,6 +90,7 @@ services:
     image: korelf/service-captcha:0.8.2
     #  restart: always
     depends_on:
+      - captcha-app
       - db
       - captcha-redis
     environment:
@@ -98,6 +102,7 @@ services:
     image: korelf/service-captcha:0.8.2
     #  restart: always
     depends_on:
+      - captcha-app
       - db
       - captcha-redis
     environment: