feat(Dockerfile): restructure multi-stage build for improved efficiency

- Introduced a multi-stage build process to optimize the Docker image size and build time.
- Added a dedicated stage for dependencies installation using pnpm, enhancing package management.
- Separated the build stage to compile the application, ensuring a cleaner final image.
- Updated the runner stage to copy only necessary files from the build stage, improving runtime performance.

Dockerfile

@@ -1,12 +1,29 @@
+FROM docker-mirror.ravanertebat.ir/hub/node:22.14 AS base
 
+ENV PNPM_HOME="/pnpm"
+ENV PATH="${PNPM_HOME}:${PATH}"
 
-FROM docker-mirror.ravanertebat.ir/hub/node:22.14
+WORKDIR /app
+RUN corepack enable
+
+FROM base AS deps
+COPY package.json pnpm-lock.yaml ./
+RUN pnpm install --frozen-lockfile
+
+FROM base AS builder
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+RUN pnpm run build
+
+FROM docker-mirror.ravanertebat.ir/hub/node:22.14 AS runner
 
 WORKDIR /app
 ENV NODE_ENV=production
 ENV HOSTNAME="0.0.0.0"
-COPY ./artifacts/node /app
 
+COPY --from=builder /app/.next/standalone ./
+COPY --from=builder /app/.next/static ./.next/static
+COPY --from=builder /app/public ./public
 
 EXPOSE 3000