build: update production artifacts and simplify dockerfiles to use pre-built output

docker/web.Dockerfile

@@ -1,25 +1,14 @@
-# Nuxt website (SSR). Build context: repository root.
+# Nuxt website (SSR). Pre-built output.
 #   docker build -f docker/web.Dockerfile -t imen-web .
 ARG NODE_IMAGE=docker.arvancloud.ir/node:24-alpine
 
-FROM ${NODE_IMAGE} AS build
-ARG NPM_REGISTRY=https://registry.npmjs.org/
-ENV COREPACK_NPM_REGISTRY=${NPM_REGISTRY} npm_config_registry=${NPM_REGISTRY}
-RUN corepack enable
-WORKDIR /repo
-COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
-COPY packages/shared packages/shared
-COPY apps/web apps/web
-RUN pnpm config set fetch-retries 5 \
- && pnpm config set fetch-retry-maxtimeout 120000 \
- && pnpm install --frozen-lockfile --filter "@imen/web..." || pnpm install --no-frozen-lockfile --filter "@imen/web..."
-RUN pnpm --filter "@imen/web..." build
-
-# .output is self-contained (Nitro bundles the server dependencies it needs)
 FROM ${NODE_IMAGE}
 WORKDIR /app
 ENV NODE_ENV=production PORT=3000
-COPY --from=build /repo/apps/web/.output ./.output
+
+# Copy pre-built Nuxt Nitro bundle
+COPY apps/web/.output ./.output
+
 USER node
 EXPOSE 3000
 CMD ["node", ".output/server/index.mjs"]