bug: ENAMETOOLONG on Taste Learning

Summary

When learning taste inside a somewhat lengthy path, encountered a ENAMETOOLONG error:

◼ taste learning failed: ENAMETOOLONG: name too long, mkdir
'/Users/xxxxxxxxxx/projects/xxxxxxxxxx/command-code-mods/.commandcode/taste/--prefers-using-command-code's-built-in-hook
-system-(`onstop`-with-`{continue:-true}`,-`preparenextturn`-for-model-switching)-over-shelling-out-to-external-api-call
s-(e.g.,-`curl`).-when-the-framework-provides-a-seam,-use-it-instead-of-reaching-for-raw-http.-confidence:-0.9'

• notice the --
• seems to use a taste preference as a "category" which is typically: ui, workflow, database etc something short and topical

Note xxxxxxxxxx is same number of chars but a user path.

Expected Behavior

• taste directory and files names to be short and topical
• taste learning to be written properly

Actual Behavior

• error and taste failed to be saved

Steps to reproduce the issue

• Unsure

Command Code Version

1.11.1

Operating System

macOS

Terminal/IDE

ghostty

Shell

zsh

Session file (optional)

No response

Fix prompt (optional)

No response

Additional context

OS: macOS Tahoe 26.5.2

首先，在报告的 macOS 版本上通过较长的路径复现 taste learning，并检查 taste 目录和文件名是如何生成的。完成标准是 learning 能够成功写入简短且与主题相关的名称，而不会出现 ENAMETOOLONG 错误。