fix(docker): skip partition wait for standalone rocksdb mode (#3000)

* fix(docker): skip partition wait for standalone rocksdb mode (#2999)

The `wait-partition.sh` script was called unconditionally in
`docker-entrypoint.sh`, causing standalone containers (rocksdb backend)
to hang for 120s printing "Waiting for partition assignment..." since
there is no Store service to respond.

Now reads the actual backend from `hugegraph.properties` and only runs
the partition wait when `backend=hstore`.

Author: imbajin

hugegraph-server/hugegraph-dist/docker/docker-entrypoint.sh

@@ -81,12 +81,14 @@ else
     log "HugeGraph initialization already done. Skipping re-init..."
 fi
 
-STORE_REST="${STORE_REST:-store:8520}"
-export STORE_REST
-
 ./bin/start-hugegraph.sh -j "${JAVA_OPTS:-}" -t 120
 
-# Post-startup cluster stabilization check
-./bin/wait-partition.sh || log "WARN: partitions not assigned yet"
+# Post-startup cluster stabilization check (hstore only — rocksdb has no partitions)
+ACTUAL_BACKEND=$(grep -E '^[[:space:]]*backend[[:space:]]*=' "${GRAPH_CONF}" | head -n 1 | sed 's/.*=//' | tr -d '[:space:]' || true)
+if [[ "${ACTUAL_BACKEND}" == "hstore" ]]; then
+    STORE_REST="${STORE_REST:-store:8520}"
+    export STORE_REST
+    ./bin/wait-partition.sh || log "WARN: partitions not assigned yet"
+fi
 
 tail -f /dev/null