Extracts the three try/write_runtime_status/except-log blocks into a
shared _write_runtime_status_safe() helper. On failure, logs the first
occurrence per (platform, context) at warning level and downgrades
subsequent failures to debug — so a persistently broken status dir
(permissions, ENOSPC) doesn't spam the log on every Telegram reconnect.
Uses getattr for the _status_write_logged set so test harnesses that
skip __init__ (object.__new__(Adapter)) don't break.
Follow-up to the salvaged #21158.
0efc547962