Example doesn't work as expected

When I call a command from examples

```
sudo httpjail -vvv --js "true" -- curl https://example.com
16:33:47.852 DEBUG httpjail: Starting httpjail with args: Args { sh: None, js: Some("true"), js_file: None, request_log: None, weak: false, verbose: 3, timeout: None, no_jail_cleanup: false, cleanup: false, server: false, test: None, docker_run: false, command: ["curl", "https://example.com"] }
16:33:47.852 INFO httpjail: Using V8 JavaScript rule evaluation
16:33:47.855 DEBUG httpjail::tls: Loading cached CA certificate from "/root/.config/httpjail/ca-cert.pem"
16:33:47.855 INFO httpjail::tls: Loaded cached CA certificate from /root/.config/httpjail/ca-cert.pem
16:33:47.855 INFO httpjail::tls: Certificate manager initialized
16:33:47.855 DEBUG httpjail::proxy: Created HTTPS client config with 145 trusted roots (including httpjail CA)
16:33:47.855 INFO httpjail::proxy: HTTPS connector initialized with webpki roots and httpjail CA
16:33:47.855 DEBUG httpjail::proxy: Successfully bound to port 8574
16:33:47.855 INFO httpjail::proxy: Starting HTTP proxy on port 8574
16:33:47.855 DEBUG httpjail::proxy: Successfully bound to port 8258
16:33:47.855 INFO httpjail::proxy: Starting HTTPS proxy on port 8258
16:33:47.855 DEBUG httpjail::jail::managed: Starting orphan cleanup scan in "/root/.local/share/httpjail/canaries"
16:33:47.855 DEBUG httpjail::jail::managed: Created canary file for jail 'wekc4una'
16:33:47.855 INFO httpjail::jail::linux: Setting up DNS for namespace httpjail_wekc4una with custom resolv.conf
16:33:47.855 DEBUG httpjail::jail::linux::resources: Created namespace config directory: /etc/netns/httpjail_wekc4una
16:33:47.855 INFO httpjail::jail::linux: Created namespace-specific resolv.conf at /etc/netns/httpjail_wekc4una/resolv.conf with Google DNS servers
16:33:47.857 INFO httpjail::jail::linux::resources: Created network namespace: httpjail_wekc4una
16:33:47.857 INFO httpjail::jail::linux: Created network namespace: httpjail_wekc4una
16:33:47.860 DEBUG httpjail::jail::linux::resources: Created veth pair: vh_wekc4una <-> vn_wekc4una
16:33:47.861 DEBUG httpjail::jail::linux: Created veth pair: vh_wekc4una <-> vn_wekc4una
16:33:47.879 DEBUG httpjail::jail::linux: Configured host side networking for vh_wekc4una
16:33:47.886 INFO httpjail::jail::linux: DNS already configured in namespace httpjail_wekc4una
16:33:47.895 INFO httpjail::jail::linux: Routes in namespace httpjail_wekc4una after configuration:
default via 10.99.183.193 dev vn_wekc4una
10.99.183.192/30 dev vn_wekc4una proto kernel scope link src 10.99.183.194

16:33:47.895 DEBUG httpjail::jail::linux: Configured networking inside namespace httpjail_wekc4una
16:33:47.895 DEBUG httpjail::jail::linux::nftables: Creating nftables table: httpjail_wekc4una
16:33:47.899 INFO httpjail::jail::linux::nftables: Created nftables table httpjail_wekc4una with NAT rules for subnet 10.99.183.192/30
16:33:47.899 INFO httpjail::jail::linux: Set up NAT rules for namespace httpjail_wekc4una with subnet 10.99.183.192/30
16:33:47.899 DEBUG httpjail::jail::linux::nftables: Creating nftables table in namespace httpjail_wekc4una: httpjail
16:33:47.902 INFO httpjail::jail::linux::nftables: Created nftables rules in namespace httpjail_wekc4una for HTTP:8574 HTTPS:8258
16:33:47.902 INFO httpjail::jail::linux: Linux jail setup complete using namespace httpjail_wekc4una with HTTP proxy on port 8574 and HTTPS proxy on port 8258
16:33:47.902 DEBUG httpjail::jail::managed: Created canary file for jail 'wekc4una'
16:33:47.902 INFO httpjail::jail::managed: Started lifecycle heartbeat for jail 'wekc4una'
16:33:47.902 DEBUG httpjail: Setting 6 CA certificate environment variables
16:33:47.902 DEBUG httpjail::jail::linux: Executing command in namespace httpjail_wekc4una: ["curl", "https://example.com"]
16:33:47.902 DEBUG httpjail::jail::managed: Starting heartbeat thread for "/root/.local/share/httpjail/canaries/wekc4una"
16:33:47.902 DEBUG httpjail::jail::linux: Will drop to user 'finkel' (from SUDO_USER) after entering namespace
```

it seems like nothing is happening and the execution never ends

Bắt đầu bằng cách tái hiện lệnh sudo httpjail được ghi trong tài liệu với logging chi tiết, sau đó kiểm tra việc thiết lập Linux namespace và đường dẫn thực thi lệnh xung quanh các mục log cuối cùng, bao gồm cả việc chuyển sang người dùng SUDO_USER. Được xem là hoàn tất khi lệnh curl hoàn thành hoặc báo lỗi rõ ràng thay vì bị treo vô thời hạn.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.