feat: add WezTerm nightly with custom configuration

[rikuson]

Summary

• Add WezTerm nightly terminal emulator installation via Homebrew
• Configure WezTerm with custom Lua configuration for optimal developer experience
• Set up FiraCode Nerd Font (size 13) for code display
• Enable transparent background (85% opacity) with macOS blur effect (20)
• Implement custom tab bar styling using nerd font icons
• Add vim-style pane navigation keybindings (Cmd+hjkl)
• Add pane splitting shortcuts (Cmd+\ for horizontal, Cmd+- for vertical)

Test plan

• Run make gui to install WezTerm nightly and deploy configuration
• Verify WezTerm launches with FiraCode Nerd Font
• Confirm transparent background with blur effect is applied
• Test pane splitting: Cmd+\ (horizontal) and Cmd+- (vertical)
• Test vim-style navigation: Cmd+h/j/k/l moves between panes
• Verify custom tab bar styling displays correctly

🤖 Generated with Claude Code

[claude]

PR Review: WezTerm Terminal Emulator Configuration

I've reviewed this PR and overall it's well-structured and follows the repository conventions. Here's my detailed feedback:

Strengths

1. Consistent with Repository Patterns: The implementation follows existing conventions (similar to how Neovim configuration is structured)
2. Clean Configuration: The WezTerm Lua configuration is well-organized and readable
3. Good Developer Experience: Thoughtful keybindings (vim-style navigation, intuitive splits)
4. Proper Ansible Structure: Correctly uses tasks, templates, and file module patterns

Issues Found

1. Missing Font Dependency (IMPORTANT)

The WezTerm config references FiraCode Nerd Font but doesn't ensure it's installed. Without this, WezTerm will fall back to a default font, and the nerd font icons in the custom tab bar won't display correctly.

Recommendation: Add font installation to roles/gui/tasks/wezterm.yml or homebrew.yml

2. Nightly Build Stability

Using wezterm@nightly means potentially unstable updates. Consider if nightly features are essential, or if stable release would suffice.

3. Performance Note

macos_window_background_blur can impact performance on older Macs with multiple panes. Minor concern depending on user hardware.

Security Considerations

No security concerns - configuration doesn't expose sensitive data, uses standard WezTerm API, and doesn't execute external commands.

Test Coverage

The Makefile references serverspec tests, but no test files exist currently. Consider adding basic tests to verify WezTerm installation and config file deployment.

Minor Suggestions

• Add tab navigation keybindings (Cmd+[ and Cmd+] for prev/next)
• Add close pane keybinding (Cmd+w)
• Add inline comments to explain custom tab bar styling logic

Summary

This is a solid PR that adds useful functionality. Main actionable item is adding the FiraCode Nerd Font dependency to ensure the configuration works as intended.