Veto if new or changed code catches an exception and silently discards it:
a bare `except:` or `except Exception:` whose body is only `pass`, only a
comment, or only a log line with no re-raise, no fallback behavior, and no
surfacing of the failure to the caller. Do NOT veto exception handling that
logs AND re-raises, that returns a clearly-documented default/fallback value,
or that is scoped to a specific, expected exception type with a real
recovery action. When the handling is deliberate and visible rather than a
silent no-op, do not veto.
