fix: respect wlroots hotkey keycode mode

[mx6436]

修复在 wlroots 已经启用 use_win32_vk_code 的情况下，仍然为 hotkey 生成 evdev 键码的问题

Summary by Sourcery

Bug Fixes:

• 修复在 wlroots 控制器配置为使用 Win32 VK 代码时，使用 evdev 键码生成快捷键的问题。

Original summary in English

Summary by Sourcery

Bug Fixes:

• Fix hotkey generation using evdev keycodes when the wlroots controller is configured to use Win32 VK codes.

[sourcery-ai]

Hey - 我在这里提供了一些高层面的反馈：

• controllerType 规范化逻辑（将带有 use_win32_vk_code 的 WlRoots 映射到 "Win32"）现在嵌入在这里；建议把这部分提取到一个共享的 helper 中，这样以后任何依赖 controller 类型的逻辑都可以使用单一且一致的“真值来源”。
• 与其在代码中硬编码字符串字面量 "WlRoots" 和 "Win32"，不如考虑使用现有的枚举或集中定义的 controller 类型常量，以减少拼写错误的风险并简化未来的重构。

给 AI Agents 的提示

Please address the comments from this code review:

## Overall Comments
- The controllerType normalization logic (mapping WlRoots with use_win32_vk_code to 'Win32') is now embedded here; consider extracting this into a shared helper so that any future logic relying on controller types uses a single, consistent source of truth.
- Instead of hardcoding the string literals 'WlRoots' and 'Win32', consider using existing enums or centralized constants for controller types to reduce the risk of typos and simplify future refactors.

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Original comment in English

Hey - I've left some high level feedback:

• The controllerType normalization logic (mapping WlRoots with use_win32_vk_code to 'Win32') is now embedded here; consider extracting this into a shared helper so that any future logic relying on controller types uses a single, consistent source of truth.
• Instead of hardcoding the string literals 'WlRoots' and 'Win32', consider using existing enums or centralized constants for controller types to reduce the risk of typos and simplify future refactors.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- The controllerType normalization logic (mapping WlRoots with use_win32_vk_code to 'Win32') is now embedded here; consider extracting this into a shared helper so that any future logic relying on controller types uses a single, consistent source of truth.
- Instead of hardcoding the string literals 'WlRoots' and 'Win32', consider using existing enums or centralized constants for controller types to reduce the risk of typos and simplify future refactors.

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