fix(prelude): unsuppress glob in os.dirs by escaping shell metachars

[Sunrisepeak]

Summary

os.dirs(pattern) shells out to ls -d "<pattern>" 2>/dev/null on POSIX. Wrapping the pattern in double quotes makes the shell skip glob expansion entirely — ls -d "/tmp/x/cuda_v*" looks for a literal file named cuda_v* and returns nothing.

Reproduced upstream:

$ mkdir -p /tmp/x/cuda_v12 /tmp/x/cuda_v13
$ ls -d "/tmp/x/cuda_v*"      # ← double-quoted: glob suppressed
ls: cannot access '/tmp/x/cuda_v*': No such file or directory
$ ls -d /tmp/x/cuda_v*         # ← unquoted: shell expands
/tmp/x/cuda_v12  /tmp/x/cuda_v13

Any xpkg package using os.dirs("…/v*") to enumerate installed versions silently returned an empty list.

Fix

Replace the all-quote approach with a per-character backslash escape that preserves glob meta (* ? [ ] ~) while still escaping whitespace, $, backticks, quotes, and shell redirect/control chars. ls -d then receives an unquoted pattern that the shell expands, and paths with spaces still survive.

Windows branch unchanged: cmd.exe's built-in dir does its own pattern matching on the argument, so the existing quoted form there is correct.

Test plan

• xmake build clean
• All 27 xpkg_executor_test cases pass
• Local shell verification: glob expands for /tmp/x/cuda_v*, escaped space /tmp/x\ space/cuda_v* still works
• CI green (multi-platform)