Enhance Docker Compose and NGINX configurations

- Added new environment variables for connection pooling in the .env file.
- Updated Docker Compose to ensure consistent naming conventions for containers and added health checks.
- Increased timeout settings in NGINX configuration for file uploads.
- Improved pgAdmin reverse proxy configuration to handle path rewrites.
- Added migration SQL file and updated helper documentation for database operations.

docker-compose.yaml

@@ -25,8 +25,9 @@ services:
       timeout: 2s # Number of failures before marking as unhealthy
       retries: 5  # Grace period before health checks start
   pgadmin:
+    restart: always
     image: dpage/pgadmin4
-    container_name: pgAdmin4_Ui
+    container_name: pgAdmin4-ui
     user: "5050:5050"
     # logging:
     #   driver: loki
@@ -90,7 +91,7 @@ services:
   phoenix-app:
     restart: always
     image: "yurimatoslima/phoenix-frontend:alpha"
-    container_name: phoenixApp
+    container_name: phoenix-app
     ports:
       - "3000:3000" # Restrict to only allow access from Grafana Server IP
     # logging:
@@ -111,7 +112,7 @@ services:
       pgadmin:
         condition: service_healthy
     healthcheck:
-      test: ["CMD", "wget", "--spider", "-q", "http://phoenixApp/login"] # localhost checks that the NGINX server inside the container is serving something at the root 
+      test: ["CMD", "wget", "--spider", "-q", "http://phoenix-app/login"] # localhost checks that the NGINX server inside the container is serving something at the root 
       interval: 10s       # check every 10 seconds
       timeout: 5s         # allow 5 seconds per check
       retries: 5          # mark as unhealthy after 5 failures
@@ -135,6 +136,7 @@ services:
       - "REDIS_PASSWORD=${REDIS_PASSWORD}"
       - RUN_JOB_QUEUE=${RUN_JOB_QUEUE}
       - NODE_ENV=${NODE_ENV}
+      - PHX_HOST_NAME=${PHX_HOST_NAME}
     command: ["npm", "run", "start:server"]
     deploy:
       replicas: ${PHOENIX_SYSTEM_REPLICAS} #change here if u want to have more replicas. Cant find a way to set via variable right now
@@ -180,6 +182,8 @@ services:
       - "SUPER_ADMIN_USER_PASSWORD=${SUPER_ADMIN_USER_PASSWORD}"
       - REDIS_PASSWORD=${REDIS_PASSWORD}
       - NODE_ENV=${NODE_ENV}
+      - PHX_HOST_NAME=${PHX_HOST_NAME}
+    command: ['npm', 'run', 'start:worker']
     depends_on:
       phoenix-system:
         condition: service_healthy
@@ -318,7 +322,7 @@ services:
   #   ports:
   #     - "9113:9113" # Restrict to only allow access from Grafana Server IP
   #   command:
-  #     - '--nginx.scrape-uri=http://phoenixApp/stub_status'
+  #     - '--nginx.scrape-uri=http://phoenix-app/stub_status'
   #   security_opt:
   #     - no-new-privileges:true
   #   deploy: