Add memory detection to Dockerfile

Dockerfile

@@ -3,6 +3,13 @@ FROM node:lts-alpine AS build-stage
 # Set environment variables for non-interactive npm installs
 ENV NPM_CONFIG_LOGLEVEL warn
 ENV CI true
+
+# Detect available memory and set NODE_OPTIONS with buffer of 128MB
+RUN memory=$(awk '/MemTotal/{print $2}' /proc/meminfo); \
+    memory=$((memory / 1024 / 1024)); \
+    node_options="--max-old-space-size=$((memory - 128))"; \
+    export NODE_OPTIONS="$node_options";
+
 WORKDIR /app
 COPY package.json pnpm-lock.yaml ./
 RUN npm install -g pnpm && pnpm i --frozen-lockfile