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arookieofcтаl0ng-ai 74062497bd fix(core): read the Windows user PATH past REG_EXPAND_SZ quirks (#690)
* fix(core): read the Windows user PATH past REG_EXPAND_SZ quirks

`RegGetValueW` reports the unexpanded size of a `REG_EXPAND_SZ` value, so
a user `Path` that grows when its `%VAR%` references are expanded was
silently dropped. And when the terminating NUL leaked into the read
buffer with a stray UTF-16 unit behind it, `trim_end_matches('\0')`
left that unit in the string and `env::set_var("PATH", ...)` panicked
("strings passed to WinAPI cannot contain NULs", #683).

Re-read at the size the failed call reports, and cut the decoded string
at the first NUL instead of trimming trailing ones. Covered by a test
against a throwaway key under HKCU\Software.

* test: cover registry terminator corruption and refresh inspection groups

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Co-authored-by: l0ng-ai <[email protected]>
2026-11-01 20:31:32 +08:00
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