💾 feat: Add Memory Configuration Options for CI unit tests (#10567)

* 💾 feat: Add Memory Configuration Options for CI unit tests

- configured GitHub Actions workflows with configurable Node.js heap allocation, defaults to 6144 MiB
- added heap usage logging for memory monitoring and debugging
- increased Docker frontend build memory allocation to ensure consistent memory limits
- optimized Jest timeout for tokenSplit test

* 💾 feat: Add Memory Configuration Options for CI unit tests

- responding to PR feedback from Copilot

Dockerfile

@@ -14,6 +14,9 @@ ENV LD_PRELOAD=/usr/lib/libjemalloc.so.2
 COPY --from=ghcr.io/astral-sh/uv:0.9.5-python3.12-alpine /usr/local/bin/uv /usr/local/bin/uvx /bin/
 RUN uv --version
 
+# Set configurable max-old-space-size with default
+ARG NODE_MAX_OLD_SPACE_SIZE=6144
+
 RUN mkdir -p /app && chown node:node /app
 WORKDIR /app
 
@@ -39,8 +42,8 @@ RUN \
 COPY --chown=node:node . .
 
 RUN \
-    # React client build
-    NODE_OPTIONS="--max-old-space-size=2048" npm run frontend; \
+    # React client build with configurable memory
+    NODE_OPTIONS="--max-old-space-size=${NODE_MAX_OLD_SPACE_SIZE}" npm run frontend; \
     npm prune --production; \
     npm cache clean --force