Refine Linux setup flow, frontend runtime selection, and shell behavior

[Copilot]

This change tightens the Linux setup path around bootstrap, shell behavior, and frontend runtime installation. It addresses three failure modes in the current flow: package-manager onboarding happening too late, setup not stopping cleanly on interrupt, and frontend tool installs colliding with bootstrap-installed Node or system npm permissions.

• Setup flow / Linux bootstrap

  • Moves zsh-config ahead of bootstrap so shell scaffolding is in place before package-manager decisions.
  • Makes Linux bootstrap explicitly offer brew even when Homebrew is not installed yet.
  • Stops the flow after a fresh Linux Homebrew install and asks the user to rerun, instead of continuing with a partially updated environment.

• Interrupt handling

  • Propagates Ctrl-C into streamed child processes.
  • Treats interrupted shell commands as a controlled shutdown path instead of leaving the install flow running or hanging.

• Linux shell behavior

  • Disables zsh spelling correction on Linux only, avoiding IME-related command input disruption while preserving existing behavior on other platforms.

• Frontend tool selection

  • Splits frontend setup into explicit selectable items:
    • fnm
    • Node.js via fnm
    • pnpm
    • git-cz
  • Keeps default/non-interactive setup aligned with the full recommended frontend set.

• Node / fnm conflict resolution

  • Changes the Linux installer bootstrap Node runtime to be session-scoped for install.sh instead of persisting shims into ~/.local/bin.
  • Prefers fnm’s default runtime for later frontend installs.
  • Removes stale suitup bootstrap Node shims when they would shadow an fnm-managed runtime.

• npm global install permissions

  • Installs npm globals with a user-local prefix under ~/.local, avoiding EACCES failures from writes into system directories such as /usr/lib/node_modules.

Example of the Linux-specific shell change:

if [[ "$OSTYPE" == linux* ]]; then
  unsetopt CORRECT
else
  setopt CORRECT
fi

[ChangeHow]

@copilot 再跑下测试

[Copilot]

@copilot 再跑下测试

已重新跑测试，当前提交 8344b3d 本地通过：npm test，共 21 个 test files、205 个 tests 全部通过。

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• dl.google.com
  • Triggering command: /usr/lib/apt/methods/https /usr/lib/apt/methods/https (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)