chore: update ff_sync environment variables in docker-compose.yml to support dynamic configuration

docker-compose.yml

@@ -39,11 +39,17 @@ services:
     container_name: ff_sync
     ports:
       - "3001:3001"
-    env_file:
-      - .env.docker
     environment:
-      PG_HOST: postgres
-      PG_PORT: "5432"
+      DB_HOST:     ${DB_HOST}
+      DB_PORT:     ${DB_PORT:-1433}
+      DB_NAME:     ${DB_NAME}
+      DB_USER:     ${DB_USER}
+      DB_PASSWORD: ${DB_PASSWORD}
+      PG_HOST:     postgres
+      PG_PORT:     5432
+      PG_DB:       ${PG_DB}
+      PG_USER:     ${PG_USER}
+      PG_PASSWORD: ${PG_PASSWORD}
     depends_on:
       postgres:
         condition: service_healthy