refactor: Move docker-compose.dev.yml to backend/ directory for better organization

backend/docker-compose.dev.yml

@@ -8,14 +8,15 @@ services:
     pull_policy: build
     container_name: normogen-backend-dev
     ports:
-      - '6800:8000'
+      - '6500:8000'
     volumes:
       - ./src:/app/src
     environment:
       - RUST_LOG=debug
       - SERVER_PORT=8000
+      - SERVER_HOST=0.0.0.0
       - MONGODB_URI=mongodb://mongodb:27017
-      - DATABASE_NAME=normogen_dev
+      - MONGODB_DATABASE=normogen_dev
       - JWT_SECRET=dev-jwt-secret-key-minimum-32-chars
     depends_on:
       mongodb:
@@ -32,14 +33,9 @@ services:
       - MONGO_INITDB_DATABASE=normogen_dev
     volumes:
       - mongodb_dev_data:/data/db
-      # For debugging: mount host directory instead
-      # - ./mongodb-data:/data/db
     networks:
       - normogen-network
-    # Fix: Explicitly set user to avoid permission issues
     user: mongodb:mongodb
-    # Alternative: Run as root but fix ownership
-    # user: root
     healthcheck:
       test: |
         echo 'db.runCommand("ping").ok' | mongosh localhost:27017/test --quiet