build: refactored prod Dockerfiles to copy source code after installing packages

Author: aten2005

backend/docker/prod/Dockerfile

@@ -2,9 +2,12 @@ FROM node:22.17-bookworm
 
 WORKDIR /app
 
-COPY ./backend .
+COPY ./backend/package*.json ./
+COPY ./backend/tsconfig.json ./
 
 RUN npm install
+
+COPY ./backend .
 RUN npm run build
 
 CMD ["sh", "-c", "npm run start"]

frontend/docker/prod/Dockerfile

@@ -2,10 +2,17 @@ FROM node:22.17-bookworm-slim AS build-stage
 
 WORKDIR /app
 
+COPY ./frontend/package*.json ./
+COPY ./frontend/public ./public
+COPY ./frontend/index.html ./
+COPY ./frontend/tsconfig* ./
+COPY ./frontend/vite.config.ts ./
+
+RUN npm install
+
 COPY ./frontend/ .
 COPY .env .
 
-RUN npm install
 RUN npm run build
 
 FROM nginx:1.25.3-alpine-slim AS production-stage