Fix: sandbox sandalone context error (#8340)

### What problem does this PR solve?

Fix sandbox sandalone context error. #8307.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

sandbox/docker-compose.yml

@@ -2,8 +2,8 @@ services:
   sandbox-executor-manager:
     container_name: sandbox-executor-manager
     build:
-      context: .
-      dockerfile: executor_manager/Dockerfile
+      context: ./executor_manager
+      dockerfile: Dockerfile
     image: sandbox-executor-manager:latest
     runtime: runc
     privileged: true
@@ -18,8 +18,8 @@ services:
       - no-new-privileges:true
     environment:
       - SANDBOX_EXECUTOR_MANAGER_POOL_SIZE=${SANDBOX_EXECUTOR_MANAGER_POOL_SIZE:-5}
-      - SANDBOX_BASE_PYTHON_IMAGE=${SANDBOX_BASE_PYTHON_IMAGE-"sandbox-base-python:latest"}
-      - SANDBOX_BASE_NODEJS_IMAGE=${SANDBOX_BASE_NODEJS_IMAGE-"sandbox-base-nodejs:latest"}
+      - SANDBOX_BASE_PYTHON_IMAGE=${SANDBOX_BASE_PYTHON_IMAGE-sandbox-base-python:latest}
+      - SANDBOX_BASE_NODEJS_IMAGE=${SANDBOX_BASE_NODEJS_IMAGE-sandbox-base-nodejs:latest}
       - SANDBOX_ENABLE_SECCOMP=${SANDBOX_ENABLE_SECCOMP:-false}
       - SANDBOX_MAX_MEMORY=${SANDBOX_MAX_MEMORY:-256m} # b, k, m, g
       - SANDBOX_TIMEOUT=${SANDBOX_TIMEOUT:-10s} # s, m, 1m30s

sandbox/executor_manager/Dockerfile

@@ -15,7 +15,7 @@ ENV UV_INDEX_URL=https://pypi.tuna.tsinghua.edu.cn/simple
 
 
 WORKDIR /app
-COPY executor_manager/ .
+COPY . .
 
 RUN uv pip install --system -r requirements.txt