fix(gvisor): 修复自动化开启/关闭 gvisor 集成的问题

[mistcoversmyeyes]

• write_disk_image.sh ：创建系统镜像的时候主动创建 /tmp 路径，以提供给 gvisor 后续使用
• enable_comile_gvisor.sh：修改匹配 gvisor 集成配置代码块的逻辑，支持位置无关的 gvisor 代码块的注释。
• disable_compile_gvisor.sh：修改匹配 gvisor 集成配置代码块的逻辑，支持位置无关的 gvisor 代码块的接触注释

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Note

Replace per-action scripts with a single toggle script for gVisor tests, update Makefile/docs to use it, convert blocklist to array form, and create /tmp in the disk image.

• Testing/Build:
  • Make test-syscall use user/apps/tests/syscall/gvisor/toggle_compile_gvisor.sh for enable/disable and ensure cleanup runs while preserving test exit status.
• Scripts:
  • Add user/apps/tests/syscall/gvisor/toggle_compile_gvisor.sh (idempotent comment/uncomment by matching name = "gvisor syscall tests").
  • Remove enable_compile_gvisor.sh and disable_compile_gvisor.sh.
• Config:
  • Convert gVisor blocklist to array syntax in config/app-blocklist.toml via blocked_apps = [ ... ].
• Docs:
  • Update docs/kernel/ktest/gvisor_syscall_test.rst to reference the new toggle script and revised workflow.
• Image build:
  • tools/write_disk_image.sh: create /tmp in rootfs.

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[Copilot]

Pull request overview

This PR fixes the automation scripts for enabling/disabling gvisor integration in the system. It improves the robustness of the configuration block matching logic to support position-independent gvisor code blocks, and ensures the /tmp directory exists in the system image with proper permissions for gvisor usage.

Key Changes:

• Rewrote enable_compile_gvisor.sh and disable_compile_gvisor.sh with more robust AWK-based parsing that handles commented and uncommented blocks flexibly
• Added /tmp directory creation with sticky bit permissions (1777) in the disk image creation process

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
user/apps/tests/syscall/gvisor/enable_compile_gvisor.sh	Complete rewrite from simple sed/awk to comprehensive AWK script with block detection, error handling, backup creation, and support for partially commented gvisor configuration blocks
user/apps/tests/syscall/gvisor/disable_compile_gvisor.sh	Complete rewrite from simple sed to comprehensive AWK script with block detection, uncommenting logic, error handling, and backup creation
tools/write_disk_image.sh	Added /tmp directory creation with standard multi-user sticky bit permissions (1777) for gvisor runtime requirements

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[fslongjin]

这个也太复杂了