[TrueFurina]

Widen suppress(FileNotFoundError) to suppress(OSError) in cleanup paths

Two cleanup paths used contextlib.suppress(FileNotFoundError) around
os.remove() / os.unlink(), which leaves Windows PermissionError (file
held open by another process) unhandled. On Windows these finally-block
cleanups would raise and shadow the primary exception.

Both sites are best-effort cleanup in finally/except blocks — OSError
is the correct catch-all for any filesystem-level failure during
teardown:

• tccli-oauth-helper.py clear_state(): state file cleanup
• clinical_profile.py _atomic_write(): temporary file cleanup after os.replace