Support optional Redis sessions and heap dumps

Dockerfile

@@ -27,13 +27,16 @@ ENV TZ=Asia/Seoul \
 -XX:+UnlockExperimentalVMOptions \
 -XX:+UseStringDeduplication \
 -XX:+HeapDumpOnOutOfMemoryError \
--XX:HeapDumpPath=/tmp \
+-XX:HeapDumpPath=/heapdumps \
+-XX:+ExitOnOutOfMemoryError \
 -XX:+DisableExplicitGC \
 -javaagent:/opt/opentelemetry-javaagent.jar"
 
 # 타임존 설정
 RUN ln -sf /usr/share/zoneinfo/Asia/Seoul /etc/localtime
 
+RUN mkdir -p /heapdumps && chown -R 1000:1000 /heapdumps
+
 # OTEL 에이전트 복사
 COPY --from=otel /opentelemetry-javaagent.jar /opt/opentelemetry-javaagent.jar
 RUN chown 1000:1000 /opt/opentelemetry-javaagent.jar