Feat: add code_executor_manager (#7814)

### What problem does this PR solve?

Add code_executor_manager. #4977.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

sandbox/scripts/wait-for-it-http.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+#
+#  Copyright 2025 The InfiniFlow Authors. All Rights Reserved.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+url=$1
+timeout=${2:-15}
+quiet=${3:-0}
+
+for i in $(seq "$timeout"); do
+  if curl -fs "$url" >/dev/null; then
+    [[ "$quiet" -ne 1 ]] && echo "✔ $url is healthy after $i seconds"
+    exit 0
+  fi
+  sleep 1
+done
+
+echo "✖ Timeout after $timeout seconds waiting for $url"
+exit 1