feat: Add email verification, owner shift deletion, Coolify Docker compose setup, and fixes

docker-compose.dev.yml

@@ -3,18 +3,17 @@ version: '3.8'
 services:
   db:
     image: postgres:16-alpine
-    container_name: shiftplan_db_dev
     environment:
-      POSTGRES_DB: shiftplan_db_dev
-      POSTGRES_USER: shiftplan_user
-      POSTGRES_PASSWORD: shiftplan_dev_password_123
+      POSTGRES_DB: ${POSTGRES_DB:-shiftplan_db_dev}
+      POSTGRES_USER: ${POSTGRES_USER:-shiftplan_user}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-shiftplan_dev_password_123}
     volumes:
       - postgres_dev_data:/var/lib/postgresql/data
     ports:
       - "5432:5432"
     restart: unless-stopped
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U shiftplan_user -d shiftplan_db_dev"]
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-shiftplan_user} -d ${POSTGRES_DB:-shiftplan_db_dev}"]
       interval: 5s
       timeout: 5s
       retries: 5
@@ -23,19 +22,18 @@ services:
     build:
       context: ./backend
       dockerfile: Dockerfile
-    container_name: shiftplan_backend_dev
     command: >
       sh -c "python manage.py makemigrations --noinput &&
              python manage.py migrate --noinput &&
              python manage.py seed_data &&
              python manage.py runserver 0.0.0.0:8000"
     environment:
-      SECRET_KEY: "dev-secret-key-shiftplan"
+      SECRET_KEY: ${SECRET_KEY:-dev-secret-key-shiftplan}
       DEBUG: "True"
       ALLOWED_HOSTS: "*"
-      POSTGRES_DB: shiftplan_db_dev
-      POSTGRES_USER: shiftplan_user
-      POSTGRES_PASSWORD: shiftplan_dev_password_123
+      POSTGRES_DB: ${POSTGRES_DB:-shiftplan_db_dev}
+      POSTGRES_USER: ${POSTGRES_USER:-shiftplan_user}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-shiftplan_dev_password_123}
       POSTGRES_HOST: db
       POSTGRES_PORT: "5432"
     volumes:
@@ -49,7 +47,6 @@ services:
 
   frontend:
     image: node:20-alpine
-    container_name: shiftplan_frontend_dev
     working_dir: /app
     command: sh -c "npm install && npm run dev -- --host 0.0.0.0 --port 3000"
     volumes: