On Windows, os.kill(nonexistent_pid, 0) raises OSError with WinError 87
("The parameter is incorrect") instead of ProcessLookupError. Without
catching OSError, the acquire_scoped_lock() and get_running_pid() paths
crash on any invalid PID check — preventing gateway startup on Windows
whenever a stale PID file survives from a prior run.
Adapted @phpoh's fix in #12490 onto current main. The main file was
refactored in the interim (get_running_pid now iterates over
(primary_record, fallback_record) with a per-iteration try/except),
so the OSError catch is added as a new except clause after
PermissionError (which is a subclass of OSError, so order matters:
PermissionError must match first).
Co-authored-by: phpoh <1352808998@qq.com>
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