feat: update environment configuration and seed admin user in database

nest-backend/Dockerfile

@@ -1,4 +1,6 @@
-FROM node:22-alpine AS build
+FROM node:22-slim AS build
+
+RUN apt-get update && apt-get install -y --no-install-recommends openssl && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 
@@ -9,7 +11,9 @@ COPY . .
 RUN npx prisma generate
 RUN npm run build
 
-FROM node:22-alpine
+FROM node:22-slim
+
+RUN apt-get update && apt-get install -y --no-install-recommends openssl && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app